117816131 has 8 divisors (see below), whose sum is σ = 124328400. Its totient is φ = 111335040.

The previous prime is 117816121. The next prime is 117816157. The reversal of 117816131 is 131618711.

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

It is a cyclic number.

It is not a de Polignac number, because 117816131 - 2¹⁰ = 117815107 is a prime.

It is a super-2 number, since 2×117816131² = 27761281447618322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 117816094 and 117816103.

It is not an unprimeable number, because it can be changed into a prime (117816121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191 + ... + 15351.

It is an arithmetic number, because the mean of its divisors is an integer number (15541050).

Almost surely, 2^117816131 is an apocalyptic number.

117816131 is a deficient number, since it is larger than the sum of its proper divisors (6512269).

117816131 is a wasteful number, since it uses less digits than its factorization.

117816131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15589.

The product of its digits is 1008, while the sum is 29.

The square root of 117816131 is about 10854.3139350214. The cubic root of 117816131 is about 490.2319199234.

The spelling of 117816131 in words is "one hundred seventeen million, eight hundred sixteen thousand, one hundred thirty-one".