117655257 has 8 divisors (see below), whose sum is σ = 157067584. Its totient is φ = 78339888.

The previous prime is 117655217. The next prime is 117655259. The reversal of 117655257 is 752556711.

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

It is not a de Polignac number, because 117655257 - 2⁷ = 117655129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117655259) 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, 21358 + ... + 26295.

It is an arithmetic number, because the mean of its divisors is an integer number (19633448).

Almost surely, 2^117655257 is an apocalyptic number.

It is an amenable number.

117655257 is a deficient number, since it is larger than the sum of its proper divisors (39412327).

117655257 is an equidigital number, since it uses as much as digits as its factorization.

117655257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48479.

The product of its digits is 73500, while the sum is 39.

The square root of 117655257 is about 10846.9008016115. The cubic root of 117655257 is about 490.0086865043.

The spelling of 117655257 in words is "one hundred seventeen million, six hundred fifty-five thousand, two hundred fifty-seven".