137954939 has 2 divisors, whose sum is σ = 137954940. Its totient is φ = 137954938.

The previous prime is 137954903. The next prime is 137954951. The reversal of 137954939 is 939459731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137954939 - 2²⁴ = 121177723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137954239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68977469 + 68977470.

It is an arithmetic number, because the mean of its divisors is an integer number (68977470).

Almost surely, 2^137954939 is an apocalyptic number.

137954939 is a deficient number, since it is larger than the sum of its proper divisors (1).

137954939 is an equidigital number, since it uses as much as digits as its factorization.

137954939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 918540, while the sum is 50.

The square root of 137954939 is about 11745.4220443541. The cubic root of 137954939 is about 516.7086728710.

The spelling of 137954939 in words is "one hundred thirty-seven million, nine hundred fifty-four thousand, nine hundred thirty-nine".