913875139 has 2 divisors, whose sum is σ = 913875140. Its totient is φ = 913875138.

The previous prime is 913875113. The next prime is 913875197. The reversal of 913875139 is 931578319.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 913875139 - 2⁵ = 913875107 is a prime.

It is not a weakly prime, because it can be changed into another prime (913845139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456937569 + 456937570.

It is an arithmetic number, because the mean of its divisors is an integer number (456937570).

Almost surely, 2^913875139 is an apocalyptic number.

913875139 is a deficient number, since it is larger than the sum of its proper divisors (1).

913875139 is an equidigital number, since it uses as much as digits as its factorization.

913875139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 46.

The square root of 913875139 is about 30230.3678277324. The cubic root of 913875139 is about 970.4256958166.

The spelling of 913875139 in words is "nine hundred thirteen million, eight hundred seventy-five thousand, one hundred thirty-nine".