1297865232 has 60 divisors (see below), whose sum is σ = 3683407104. Its totient is φ = 426525120.

The previous prime is 1297865207. The next prime is 1297865237. The reversal of 1297865232 is 2325687921.

It is not an unprimeable number, because it can be changed into a prime (1297865237) 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, 53248 + ... + 73695.

Almost surely, 2^1297865232 is an apocalyptic number.

1297865232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1297865232 is an abundant number, since it is smaller than the sum of its proper divisors (2385541872).

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

1297865232 is a wasteful number, since it uses less digits than its factorization.

1297865232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127028 (or 127019 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 1297865232 is about 36025.8966855788. The cubic root of 1297865232 is about 1090.7951530398.

It can be divided in two parts, 12978 and 65232, that added together give a triangular number (78210 = T₃₉₅).

The spelling of 1297865232 in words is "one billion, two hundred ninety-seven million, eight hundred sixty-five thousand, two hundred thirty-two".