131337138 has 32 divisors (see below), whose sum is σ = 278660736. Its totient is φ = 41124608.

The previous prime is 131337137. The next prime is 131337163. The reversal of 131337138 is 831733131.

It is not an unprimeable number, because it can be changed into a prime (131337137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74920 + ... + 76652.

It is an arithmetic number, because the mean of its divisors is an integer number (8708148).

Almost surely, 2^131337138 is an apocalyptic number.

131337138 is an abundant number, since it is smaller than the sum of its proper divisors (147323598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131337138 is a wasteful number, since it uses less digits than its factorization.

131337138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498.

The product of its digits is 4536, while the sum is 30.

The square root of 131337138 is about 11460.2416204895. The cubic root of 131337138 is about 508.3106192365.

The spelling of 131337138 in words is "one hundred thirty-one million, three hundred thirty-seven thousand, one hundred thirty-eight".