136995539 has 2 divisors, whose sum is σ = 136995540. Its totient is φ = 136995538.

The previous prime is 136995511. The next prime is 136995563. The reversal of 136995539 is 935599631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136995539 - 2²⁴ = 120218323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (136995589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68497769 + 68497770.

It is an arithmetic number, because the mean of its divisors is an integer number (68497770).

Almost surely, 2^136995539 is an apocalyptic number.

136995539 is a deficient number, since it is larger than the sum of its proper divisors (1).

136995539 is an equidigital number, since it uses as much as digits as its factorization.

136995539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 984150, while the sum is 50.

The square root of 136995539 is about 11704.5093446928. The cubic root of 136995539 is about 515.5080780939.

The spelling of 136995539 in words is "one hundred thirty-six million, nine hundred ninety-five thousand, five hundred thirty-nine".