131339937 has 4 divisors (see below), whose sum is σ = 175119920. Its totient is φ = 87559956.

The previous prime is 131339911. The next prime is 131339941. The reversal of 131339937 is 739933131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 131339937 - 2¹⁰ = 131338913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131339895 and 131339904.

It is not an unprimeable number, because it can be changed into a prime (131339987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21889987 + ... + 21889992.

It is an arithmetic number, because the mean of its divisors is an integer number (43779980).

Almost surely, 2^131339937 is an apocalyptic number.

It is an amenable number.

131339937 is a deficient number, since it is larger than the sum of its proper divisors (43779983).

131339937 is an equidigital number, since it uses as much as digits as its factorization.

131339937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43779982.

The product of its digits is 45927, while the sum is 39.

The square root of 131339937 is about 11460.3637376830. The cubic root of 131339937 is about 508.3142301758.

The spelling of 131339937 in words is "one hundred thirty-one million, three hundred thirty-nine thousand, nine hundred thirty-seven".