131009137 has 8 divisors (see below), whose sum is σ = 150486336. Its totient is φ = 111722352.

The previous prime is 131009117. The next prime is 131009141. The reversal of 131009137 is 731900131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131009137 - 2²³ = 122620529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131009107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46123 + ... + 48880.

It is an arithmetic number, because the mean of its divisors is an integer number (18810792).

Almost surely, 2^131009137 is an apocalyptic number.

It is an amenable number.

131009137 is a deficient number, since it is larger than the sum of its proper divisors (19477199).

131009137 is an equidigital number, since it uses as much as digits as its factorization.

131009137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95207.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 131009137 is about 11445.9222869981. The cubic root of 131009137 is about 507.8871153166.

Adding to 131009137 its reverse (731900131), we get a palindrome (862909268).

The spelling of 131009137 in words is "one hundred thirty-one million, nine thousand, one hundred thirty-seven".