13139194037 has 2 divisors, whose sum is σ = 13139194038. Its totient is φ = 13139194036.

The previous prime is 13139194031. The next prime is 13139194049. The reversal of 13139194037 is 73049193131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8086685476 + 5052508561 = 89926^2 + 71081^2 .

It is a cyclic number.

It is not a de Polignac number, because 13139194037 - 2¹² = 13139189941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13139193985 and 13139194003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13139194031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6569597018 + 6569597019.

It is an arithmetic number, because the mean of its divisors is an integer number (6569597019).

Almost surely, 2^13139194037 is an apocalyptic number.

It is an amenable number.

13139194037 is a deficient number, since it is larger than the sum of its proper divisors (1).

13139194037 is an equidigital number, since it uses as much as digits as its factorization.

13139194037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 41.

The spelling of 13139194037 in words is "thirteen billion, one hundred thirty-nine million, one hundred ninety-four thousand, thirty-seven".