139457074093 has 2 divisors, whose sum is σ = 139457074094. Its totient is φ = 139457074092.

The previous prime is 139457074079. The next prime is 139457074217. The reversal of 139457074093 is 390470754931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139381262244 + 75811849 = 373338^2 + 8707^2 .

It is a cyclic number.

It is not a de Polignac number, because 139457074093 - 2²⁵ = 139423519661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139457074093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139457074063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69728537046 + 69728537047.

It is an arithmetic number, because the mean of its divisors is an integer number (69728537047).

Almost surely, 2^139457074093 is an apocalyptic number.

It is an amenable number.

139457074093 is a deficient number, since it is larger than the sum of its proper divisors (1).

139457074093 is an equidigital number, since it uses as much as digits as its factorization.

139457074093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2857680, while the sum is 52.

The spelling of 139457074093 in words is "one hundred thirty-nine billion, four hundred fifty-seven million, seventy-four thousand, ninety-three".