137144072657 has 4 divisors (see below), whose sum is σ = 137213374320. Its totient is φ = 137074770996.

The previous prime is 137144072617. The next prime is 137144072669. The reversal of 137144072657 is 756270441731.

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 a de Polignac number, because none of the positive numbers 2^k-137144072657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137144072617) 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, 34647863 + ... + 34651820.

It is an arithmetic number, because the mean of its divisors is an integer number (34303343580).

Almost surely, 2^137144072657 is an apocalyptic number.

It is an amenable number.

137144072657 is a deficient number, since it is larger than the sum of its proper divisors (69301663).

137144072657 is an equidigital number, since it uses as much as digits as its factorization.

137144072657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69301662.

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 137144072657 in words is "one hundred thirty-seven billion, one hundred forty-four million, seventy-two thousand, six hundred fifty-seven".