1307257152 has 56 divisors (see below), whose sum is σ = 3640836000. Its totient is φ = 412816896.

The previous prime is 1307257139. The next prime is 1307257169. The reversal of 1307257152 is 2517527031.

It is a happy number.

It is a super-2 number, since 2×1307257152² = 3417842522910302208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175527 + ... + 182822.

Almost surely, 2^1307257152 is an apocalyptic number.

1307257152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1307257152 is an abundant number, since it is smaller than the sum of its proper divisors (2333578848).

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

1307257152 is a wasteful number, since it uses less digits than its factorization.

1307257152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358383 (or 358373 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 1307257152 is about 36156.0112844324. The cubic root of 1307257152 is about 1093.4199885048.

The spelling of 1307257152 in words is "one billion, three hundred seven million, two hundred fifty-seven thousand, one hundred fifty-two".