131249083238 has 32 divisors (see below), whose sum is σ = 243373503744. Its totient is φ = 51693963552.

The previous prime is 131249083237. The next prime is 131249083283. The reversal of 131249083238 is 832380942131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131249083237) 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, 1547120 + ... + 1629747.

It is an arithmetic number, because the mean of its divisors is an integer number (7605421992).

Almost surely, 2^131249083238 is an apocalyptic number.

131249083238 is a deficient number, since it is larger than the sum of its proper divisors (112124420506).

131249083238 is a wasteful number, since it uses less digits than its factorization.

131249083238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177116.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 131249083238 in words is "one hundred thirty-one billion, two hundred forty-nine million, eighty-three thousand, two hundred thirty-eight".