117256757 has 4 divisors (see below), whose sum is σ = 117429120. Its totient is φ = 117084396.

The previous prime is 117256753. The next prime is 117256759. The reversal of 117256757 is 757652711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117256757 - 2² = 117256753 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117256753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85157 + ... + 86522.

It is an arithmetic number, because the mean of its divisors is an integer number (29357280).

Almost surely, 2^117256757 is an apocalyptic number.

It is an amenable number.

117256757 is a deficient number, since it is larger than the sum of its proper divisors (172363).

117256757 is an equidigital number, since it uses as much as digits as its factorization.

117256757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172362.

The product of its digits is 102900, while the sum is 41.

The square root of 117256757 is about 10828.5159186289. The cubic root of 117256757 is about 489.4548386460.

The spelling of 117256757 in words is "one hundred seventeen million, two hundred fifty-six thousand, seven hundred fifty-seven".