137992677 has 4 divisors (see below), whose sum is σ = 183990240. Its totient is φ = 91995116.

The previous prime is 137992669. The next prime is 137992691. The reversal of 137992677 is 776299731.

137992677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 776299731 = 3 ⋅258766577.

It is a cyclic number.

It is not a de Polignac number, because 137992677 - 2³ = 137992669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137992607) 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, 22998777 + ... + 22998782.

It is an arithmetic number, because the mean of its divisors is an integer number (45997560).

Almost surely, 2^137992677 is an apocalyptic number.

It is an amenable number.

137992677 is a deficient number, since it is larger than the sum of its proper divisors (45997563).

137992677 is an equidigital number, since it uses as much as digits as its factorization.

137992677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45997562.

The product of its digits is 1000188, while the sum is 51.

The square root of 137992677 is about 11747.0284327569. The cubic root of 137992677 is about 516.7557843270.

The spelling of 137992677 in words is "one hundred thirty-seven million, nine hundred ninety-two thousand, six hundred seventy-seven".