139004260831 has 2 divisors, whose sum is σ = 139004260832. Its totient is φ = 139004260830.

The previous prime is 139004260819. The next prime is 139004260867. The reversal of 139004260831 is 138062400931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139004260831 - 2²¹ = 139002163679 is a prime.

It is a super-2 number, since 2×139004260831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139004260931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69502130415 + 69502130416.

It is an arithmetic number, because the mean of its divisors is an integer number (69502130416).

Almost surely, 2^139004260831 is an apocalyptic number.

139004260831 is a deficient number, since it is larger than the sum of its proper divisors (1).

139004260831 is an equidigital number, since it uses as much as digits as its factorization.

139004260831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 139004260831 in words is "one hundred thirty-nine billion, four million, two hundred sixty thousand, eight hundred thirty-one".