117752457 has 8 divisors (see below), whose sum is σ = 157130784. Its totient is φ = 78437888.

The previous prime is 117752417. The next prime is 117752473. The reversal of 117752457 is 754257711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117752457 - 2²⁴ = 100975241 is a prime.

It is a super-2 number, since 2×117752457² = 27731282259073698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117752417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11448 + ... + 19145.

It is an arithmetic number, because the mean of its divisors is an integer number (19641348).

Almost surely, 2^117752457 is an apocalyptic number.

It is an amenable number.

117752457 is a deficient number, since it is larger than the sum of its proper divisors (39378327).

117752457 is a wasteful number, since it uses less digits than its factorization.

117752457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31879.

The product of its digits is 68600, while the sum is 39.

The square root of 117752457 is about 10851.3804190988. The cubic root of 117752457 is about 490.1435883509.

The spelling of 117752457 in words is "one hundred seventeen million, seven hundred fifty-two thousand, four hundred fifty-seven".