13186139 has 2 divisors, whose sum is σ = 13186140. Its totient is φ = 13186138.

The previous prime is 13186123. The next prime is 13186157. The reversal of 13186139 is 93168131.

13186139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13186139 - 2⁴ = 13186123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13186109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6593069 + 6593070.

It is an arithmetic number, because the mean of its divisors is an integer number (6593070).

Almost surely, 2^13186139 is an apocalyptic number.

13186139 is a deficient number, since it is larger than the sum of its proper divisors (1).

13186139 is an equidigital number, since it uses as much as digits as its factorization.

13186139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 32.

The square root of 13186139 is about 3631.2723665404. The cubic root of 13186139 is about 236.2503985511.

The spelling of 13186139 in words is "thirteen million, one hundred eighty-six thousand, one hundred thirty-nine".