13139189941 has 2 divisors, whose sum is σ = 13139189942. Its totient is φ = 13139189940.

The previous prime is 13139189929. The next prime is 13139189969. The reversal of 13139189941 is 14998193131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7046763025 + 6092426916 = 83945^2 + 78054^2 .

It is an emirp because it is prime and its reverse (14998193131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13139189941 - 2⁹ = 13139189429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13139189981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6569594970 + 6569594971.

It is an arithmetic number, because the mean of its divisors is an integer number (6569594971).

Almost surely, 2^13139189941 is an apocalyptic number.

It is an amenable number.

13139189941 is a deficient number, since it is larger than the sum of its proper divisors (1).

13139189941 is an equidigital number, since it uses as much as digits as its factorization.

13139189941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 49.

The spelling of 13139189941 in words is "thirteen billion, one hundred thirty-nine million, one hundred eighty-nine thousand, nine hundred forty-one".