1312565232 has 80 divisors (see below), whose sum is σ = 3799078272. Its totient is φ = 386991360.

The previous prime is 1312565231. The next prime is 1312565249. The reversal of 1312565232 is 2325652131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312565232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312565231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14058 + ... + 53129.

Almost surely, 2^1312565232 is an apocalyptic number.

1312565232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312565232 is an abundant number, since it is smaller than the sum of its proper divisors (2486513040).

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

1312565232 is a wasteful number, since it uses less digits than its factorization.

1312565232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67246 (or 67240 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 1312565232 is about 36229.3421414190. The cubic root of 1312565232 is about 1094.8979233885.

The spelling of 1312565232 in words is "one billion, three hundred twelve million, five hundred sixty-five thousand, two hundred thirty-two".