116136531 has 32 divisors (see below), whose sum is σ = 206988800. Its totient is φ = 62868960.

The previous prime is 116136523. The next prime is 116136533. The reversal of 116136531 is 135631611.

116136531 is a `hidden beast` number, since 1 + 1 + 6 + 1 + 3 + 653 + 1 = 666.

It is not a de Polignac number, because 116136531 - 2³ = 116136523 is a prime.

It is a super-2 number, since 2×116136531² = 26975387665427922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 116136495 and 116136504.

It is not an unprimeable number, because it can be changed into a prime (116136533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12580 + ... + 19761.

It is an arithmetic number, because the mean of its divisors is an integer number (6468400).

Almost surely, 2^116136531 is an apocalyptic number.

116136531 is a deficient number, since it is larger than the sum of its proper divisors (90852269).

116136531 is a wasteful number, since it uses less digits than its factorization.

116136531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32376 (or 32370 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 116136531 is about 10776.6660428910. Note that the first 3 decimals coincide. The cubic root of 116136531 is about 487.8911606125.

The spelling of 116136531 in words is "one hundred sixteen million, one hundred thirty-six thousand, five hundred thirty-one".