131168236 has 12 divisors (see below), whose sum is σ = 230357512. Its totient is φ = 65351808.

The previous prime is 131168227. The next prime is 131168237. The reversal of 131168236 is 632861131.

It is a super-2 number, since 2×131168236² = 34410212270703392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131168198 and 131168207.

It is not an unprimeable number, because it can be changed into a prime (131168237) 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, 56805 + ... + 59068.

Almost surely, 2^131168236 is an apocalyptic number.

It is an amenable number.

131168236 is a deficient number, since it is larger than the sum of its proper divisors (99189276).

131168236 is a wasteful number, since it uses less digits than its factorization.

131168236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116160 (or 116158 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 131168236 is about 11452.8702079435. The cubic root of 131168236 is about 508.0926267950.

The spelling of 131168236 in words is "one hundred thirty-one million, one hundred sixty-eight thousand, two hundred thirty-six".