131493136 has 20 divisors (see below), whose sum is σ = 258358464. Its totient is φ = 64820000.

The previous prime is 131493101. The next prime is 131493137. The reversal of 131493136 is 631394131.

It is a super-2 number, since 2×131493136² = 34580889630228992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131493098 and 131493107.

It is not an unprimeable number, because it can be changed into a prime (131493137) 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, 56740 + ... + 59011.

Almost surely, 2^131493136 is an apocalyptic number.

131493136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131493136 is a deficient number, since it is larger than the sum of its proper divisors (126865328).

131493136 is a wasteful number, since it uses less digits than its factorization.

131493136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115830 (or 115824 counting only the distinct ones).

The product of its digits is 5832, while the sum is 31.

The square root of 131493136 is about 11467.0456526518. The cubic root of 131493136 is about 508.5117912407.

The spelling of 131493136 in words is "one hundred thirty-one million, four hundred ninety-three thousand, one hundred thirty-six".