1261230 has 32 divisors (see below), whose sum is σ = 3206304. Its totient is φ = 316416.

The previous prime is 1261223. The next prime is 1261259. The reversal of 1261230 is 321621.

It is a super-2 number, since 2×1261230² = 3181402225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 727 + ... + 1746.

It is an arithmetic number, because the mean of its divisors is an integer number (100197).

2^1261230 is an apocalyptic number.

1261230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1261230 is an abundant number, since it is smaller than the sum of its proper divisors (1945074).

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

1261230 is a wasteful number, since it uses less digits than its factorization.

1261230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1261230 is about 1123.0449679332. The cubic root of 1261230 is about 108.0433639306.

Adding to 1261230 its reverse (321621), we get a palindrome (1582851).

The spelling of 1261230 in words is "one million, two hundred sixty-one thousand, two hundred thirty".