1157207256 has 32 divisors (see below), whose sum is σ = 3214465200. Its totient is φ = 385735680.

The previous prime is 1157207237. The next prime is 1157207263. The reversal of 1157207256 is 6527027511.

1157207256 is a `hidden beast` number, since 11 + 572 + 0 + 72 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1157207256.

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, 2678505 + ... + 2678936.

Almost surely, 2^1157207256 is an apocalyptic number.

It is an amenable number.

1157207256 is an abundant number, since it is smaller than the sum of its proper divisors (2057257944).

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

1157207256 is a wasteful number, since it uses less digits than its factorization.

1157207256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357456 (or 5357446 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 1157207256 is about 34017.7491318870. The cubic root of 1157207256 is about 1049.8736827636.

The spelling of 1157207256 in words is "one billion, one hundred fifty-seven million, two hundred seven thousand, two hundred fifty-six".