137865023 has 2 divisors, whose sum is σ = 137865024. Its totient is φ = 137865022.

The previous prime is 137864989. The next prime is 137865037. The reversal of 137865023 is 320568731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137865023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137861023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68932511 + 68932512.

It is an arithmetic number, because the mean of its divisors is an integer number (68932512).

Almost surely, 2^137865023 is an apocalyptic number.

137865023 is a deficient number, since it is larger than the sum of its proper divisors (1).

137865023 is an equidigital number, since it uses as much as digits as its factorization.

137865023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 137865023 is about 11741.5937163572. The cubic root of 137865023 is about 516.5963886837.

The spelling of 137865023 in words is "one hundred thirty-seven million, eight hundred sixty-five thousand, twenty-three".