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1227132 = 223289383
BaseRepresentation
bin100101011100101111100
32022100022100
410223211330
5303232012
642145100
713300434
oct4534574
92270270
101227132
11768a65
124b2190
1333c71a
1423d2c4
151938dc
hex12b97c

1227132 has 36 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 403392.

The previous prime is 1227131. The next prime is 1227133. The reversal of 1227132 is 2317221.

It is an interprime number because it is at equal distance from previous prime (1227131) and next prime (1227133).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3013 + ... + 3395.

It is an arithmetic number, because the mean of its divisors is an integer number (87360).

21227132 is an apocalyptic number.

1227132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572480).

1227132 is an abundant number, since it is smaller than the sum of its proper divisors (1917828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1227132 is a wasteful number, since it uses less digits than its factorization.

1227132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 477 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 1227132 is about 1107.7599017838. The cubic root of 1227132 is about 107.0607859115.

The spelling of 1227132 in words is "one million, two hundred twenty-seven thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 89 178 267 356 383 534 766 801 1068 1149 1532 1602 2298 3204 3447 4596 6894 13788 34087 68174 102261 136348 204522 306783 409044 613566 1227132