117587257 has 8 divisors (see below), whose sum is σ = 128044800. Its totient is φ = 107556624.

The previous prime is 117587251. The next prime is 117587269. The reversal of 117587257 is 752785711.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117587257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117587251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106153 + ... + 107254.

It is an arithmetic number, because the mean of its divisors is an integer number (16005600).

Almost surely, 2^117587257 is an apocalyptic number.

It is an amenable number.

117587257 is a deficient number, since it is larger than the sum of its proper divisors (10457543).

117587257 is a wasteful number, since it uses less digits than its factorization.

117587257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213455.

The product of its digits is 137200, while the sum is 43.

The square root of 117587257 is about 10843.7658126686. The cubic root of 117587257 is about 489.9142665498.

The spelling of 117587257 in words is "one hundred seventeen million, five hundred eighty-seven thousand, two hundred fifty-seven".