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1225126 = 2787509
BaseRepresentation
bin100101011000110100110
32022020120001
410223012212
5303201001
642131514
713261540
oct4530646
92266501
101225126
11767501
124b0b9a
1333b836
1423c690
15193001
hex12b1a6

1225126 has 8 divisors (see below), whose sum is σ = 2100240. Its totient is φ = 525048.

The previous prime is 1225123. The next prime is 1225127. The reversal of 1225126 is 6215221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43741 + ... + 43768.

It is an arithmetic number, because the mean of its divisors is an integer number (262530).

21225126 is an apocalyptic number.

1225126 is a deficient number, since it is larger than the sum of its proper divisors (875114).

1225126 is an equidigital number, since it uses as much as digits as its factorization.

1225126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87518.

The product of its digits is 240, while the sum is 19.

The square root of 1225126 is about 1106.8541005932. The cubic root of 1225126 is about 107.0024164592.

The spelling of 1225126 in words is "one million, two hundred twenty-five thousand, one hundred twenty-six".

Divisors: 1 2 7 14 87509 175018 612563 1225126