117157255 has 4 divisors (see below), whose sum is σ = 140588712. Its totient is φ = 93725800.

The previous prime is 117157253. The next prime is 117157259. The reversal of 117157255 is 552751711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552751711 = 563 ⋅981797.

It is not a de Polignac number, because 117157255 - 2¹ = 117157253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117157255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117157253) 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, 11715721 + ... + 11715730.

It is an arithmetic number, because the mean of its divisors is an integer number (35147178).

Almost surely, 2^117157255 is an apocalyptic number.

117157255 is a deficient number, since it is larger than the sum of its proper divisors (23431457).

117157255 is an equidigital number, since it uses as much as digits as its factorization.

117157255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23431456.

The product of its digits is 12250, while the sum is 34.

The square root of 117157255 is about 10823.9205004471. The cubic root of 117157255 is about 489.3163519071.

The spelling of 117157255 in words is "one hundred seventeen million, one hundred fifty-seven thousand, two hundred fifty-five".