31040007139 has 2 divisors, whose sum is σ = 31040007140. Its totient is φ = 31040007138.

The previous prime is 31040007079. The next prime is 31040007161. The reversal of 31040007139 is 93170004013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31040007139 - 2²⁵ = 31006452707 is a prime.

It is not a weakly prime, because it can be changed into another prime (31040007199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15520003569 + 15520003570.

It is an arithmetic number, because the mean of its divisors is an integer number (15520003570).

Almost surely, 2^31040007139 is an apocalyptic number.

31040007139 is a deficient number, since it is larger than the sum of its proper divisors (1).

31040007139 is an equidigital number, since it uses as much as digits as its factorization.

31040007139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The spelling of 31040007139 in words is "thirty-one billion, forty million, seven thousand, one hundred thirty-nine".