139338013 has 2 divisors, whose sum is σ = 139338014. Its totient is φ = 139338012.

The previous prime is 139337983. The next prime is 139338037. The reversal of 139338013 is 310833931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85433049 + 53904964 = 9243^2 + 7342^2 .

It is a cyclic number.

It is not a de Polignac number, because 139338013 - 2²¹ = 137240861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139338053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69669006 + 69669007.

It is an arithmetic number, because the mean of its divisors is an integer number (69669007).

Almost surely, 2^139338013 is an apocalyptic number.

It is an amenable number.

139338013 is a deficient number, since it is larger than the sum of its proper divisors (1).

139338013 is an equidigital number, since it uses as much as digits as its factorization.

139338013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 139338013 is about 11804.1523626222. The cubic root of 139338013 is about 518.4296969223.

The spelling of 139338013 in words is "one hundred thirty-nine million, three hundred thirty-eight thousand, thirteen".