137912977 has 2 divisors, whose sum is σ = 137912978. Its totient is φ = 137912976.

The previous prime is 137912969. The next prime is 137913011. The reversal of 137912977 is 779219731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125529616 + 12383361 = 11204^2 + 3519^2 .

It is a cyclic number.

It is not a de Polignac number, because 137912977 - 2³ = 137912969 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137912917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68956488 + 68956489.

It is an arithmetic number, because the mean of its divisors is an integer number (68956489).

Almost surely, 2^137912977 is an apocalyptic number.

It is an amenable number.

137912977 is a deficient number, since it is larger than the sum of its proper divisors (1).

137912977 is an equidigital number, since it uses as much as digits as its factorization.

137912977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 166698, while the sum is 46.

The square root of 137912977 is about 11743.6355955045. The cubic root of 137912977 is about 516.6562781586.

The spelling of 137912977 in words is "one hundred thirty-seven million, nine hundred twelve thousand, nine hundred seventy-seven".