117608511 has 4 divisors (see below), whose sum is σ = 156811352. Its totient is φ = 78405672.

The previous prime is 117608443. The next prime is 117608521. The reversal of 117608511 is 115806711.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 117608511 - 2⁹ = 117607999 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 (117608521) 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, 19601416 + ... + 19601421.

It is an arithmetic number, because the mean of its divisors is an integer number (39202838).

Almost surely, 2^117608511 is an apocalyptic number.

117608511 is a deficient number, since it is larger than the sum of its proper divisors (39202841).

117608511 is an equidigital number, since it uses as much as digits as its factorization.

117608511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39202840.

The product of its (nonzero) digits is 1680, while the sum is 30.

The square root of 117608511 is about 10844.7457784865. The cubic root of 117608511 is about 489.9437822495.

The spelling of 117608511 in words is "one hundred seventeen million, six hundred eight thousand, five hundred eleven".