137377139 has 2 divisors, whose sum is σ = 137377140. Its totient is φ = 137377138.

The previous prime is 137377127. The next prime is 137377223. The reversal of 137377139 is 931773731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137377139 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 137377096 and 137377105.

It is not a weakly prime, because it can be changed into another prime (137377739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68688569 + 68688570.

It is an arithmetic number, because the mean of its divisors is an integer number (68688570).

Almost surely, 2^137377139 is an apocalyptic number.

137377139 is a deficient number, since it is larger than the sum of its proper divisors (1).

137377139 is an equidigital number, since it uses as much as digits as its factorization.

137377139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 83349, while the sum is 41.

The square root of 137377139 is about 11720.7994181284. The cubic root of 137377139 is about 515.9862822606.

The spelling of 137377139 in words is "one hundred thirty-seven million, three hundred seventy-seven thousand, one hundred thirty-nine".