131282931 has 16 divisors (see below), whose sum is σ = 190380960. Its totient is φ = 79987200.

The previous prime is 131282917. The next prime is 131282933. The reversal of 131282931 is 139282131.

It is not a de Polignac number, because 131282931 - 2⁶ = 131282867 is a prime.

It is a super-2 number, since 2×131282931² = 34470415943901522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131282933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12726 + ... + 20603.

It is an arithmetic number, because the mean of its divisors is an integer number (11898810).

Almost surely, 2^131282931 is an apocalyptic number.

131282931 is a deficient number, since it is larger than the sum of its proper divisors (59098029).

131282931 is a wasteful number, since it uses less digits than its factorization.

131282931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33446.

The product of its digits is 2592, while the sum is 30.

The square root of 131282931 is about 11457.8763739185. The cubic root of 131282931 is about 508.2406776449.

The spelling of 131282931 in words is "one hundred thirty-one million, two hundred eighty-two thousand, nine hundred thirty-one".