131381457137 has 4 divisors (see below), whose sum is σ = 150150236736. Its totient is φ = 112612677540.

The previous prime is 131381457113. The next prime is 131381457149. The reversal of 131381457137 is 731754183131.

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 a cyclic number.

It is not a de Polignac number, because 131381457137 - 2¹⁰ = 131381456113 is a prime.

It is a super-2 number, since 2×131381457137² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131381457167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9384389789 + ... + 9384389802.

It is an arithmetic number, because the mean of its divisors is an integer number (37537559184).

Almost surely, 2^131381457137 is an apocalyptic number.

It is an amenable number.

131381457137 is a deficient number, since it is larger than the sum of its proper divisors (18768779599).

131381457137 is an equidigital number, since it uses as much as digits as its factorization.

131381457137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18768779598.

The product of its digits is 211680, while the sum is 44.

The spelling of 131381457137 in words is "one hundred thirty-one billion, three hundred eighty-one million, four hundred fifty-seven thousand, one hundred thirty-seven".