117358881 has 4 divisors (see below), whose sum is σ = 156478512. Its totient is φ = 78239252.

The previous prime is 117358873. The next prime is 117358909. The reversal of 117358881 is 188853711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 117358881 - 2³ = 117358873 is a prime.

It is a super-2 number, since 2×117358881² = 27546213899144322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117358831) 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, 19559811 + ... + 19559816.

It is an arithmetic number, because the mean of its divisors is an integer number (39119628).

Almost surely, 2^117358881 is an apocalyptic number.

It is an amenable number.

117358881 is a deficient number, since it is larger than the sum of its proper divisors (39119631).

117358881 is an equidigital number, since it uses as much as digits as its factorization.

117358881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39119630.

The product of its digits is 53760, while the sum is 42.

The square root of 117358881 is about 10833.2304046392. The cubic root of 117358881 is about 489.5968932358.

The spelling of 117358881 in words is "one hundred seventeen million, three hundred fifty-eight thousand, eight hundred eighty-one".