137766677 has 2 divisors, whose sum is σ = 137766678. Its totient is φ = 137766676.

The previous prime is 137766667. The next prime is 137766689. The reversal of 137766677 is 776667731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108972721 + 28793956 = 10439^2 + 5366^2 .

It is a cyclic number.

It is not a de Polignac number, because 137766677 - 2⁴ = 137766661 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137766667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68883338 + 68883339.

It is an arithmetic number, because the mean of its divisors is an integer number (68883339).

Almost surely, 2^137766677 is an apocalyptic number.

It is an amenable number.

137766677 is a deficient number, since it is larger than the sum of its proper divisors (1).

137766677 is an equidigital number, since it uses as much as digits as its factorization.

137766677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555848, while the sum is 50.

The square root of 137766677 is about 11737.4050368895. The cubic root of 137766677 is about 516.4735214696.

The spelling of 137766677 in words is "one hundred thirty-seven million, seven hundred sixty-six thousand, six hundred seventy-seven".