137388967 has 2 divisors, whose sum is σ = 137388968. Its totient is φ = 137388966.

The previous prime is 137388961. The next prime is 137388971. The reversal of 137388967 is 769883731.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137388967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137388961) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68694483 + 68694484.

It is an arithmetic number, because the mean of its divisors is an integer number (68694484).

Almost surely, 2^137388967 is an apocalyptic number.

137388967 is a deficient number, since it is larger than the sum of its proper divisors (1).

137388967 is an equidigital number, since it uses as much as digits as its factorization.

137388967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 52.

The square root of 137388967 is about 11721.3039803599. The cubic root of 137388967 is about 516.0010904270.

The spelling of 137388967 in words is "one hundred thirty-seven million, three hundred eighty-eight thousand, nine hundred sixty-seven".