131382536 has 16 divisors (see below), whose sum is σ = 247008300. Its totient is φ = 65513664.

The previous prime is 131382527. The next prime is 131382539. The reversal of 131382536 is 635283131.

It can be written as a sum of positive squares in 2 ways, for example, as 125574436 + 5808100 = 11206^2 + 2410^2 .

It is a super-2 number, since 2×131382536² = 34522741531582592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131382539) 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, 19031 + ... + 24998.

Almost surely, 2^131382536 is an apocalyptic number.

It is an amenable number.

131382536 is a deficient number, since it is larger than the sum of its proper divisors (115625764).

131382536 is a wasteful number, since it uses less digits than its factorization.

131382536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44408 (or 44404 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 131382536 is about 11462.2221231313. Note that the first 3 decimals coincide. The cubic root of 131382536 is about 508.3691800455.

The spelling of 131382536 in words is "one hundred thirty-one million, three hundred eighty-two thousand, five hundred thirty-six".