136903890239 has 2 divisors, whose sum is σ = 136903890240. Its totient is φ = 136903890238.

The previous prime is 136903890191. The next prime is 136903890241. The reversal of 136903890239 is 932098309631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136903890239 - 2²⁸ = 136635454783 is a prime.

Together with 136903890241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136903890259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68451945119 + 68451945120.

It is an arithmetic number, because the mean of its divisors is an integer number (68451945120).

Almost surely, 2^136903890239 is an apocalyptic number.

136903890239 is a deficient number, since it is larger than the sum of its proper divisors (1).

136903890239 is an equidigital number, since it uses as much as digits as its factorization.

136903890239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 136903890239 in words is "one hundred thirty-six billion, nine hundred three million, eight hundred ninety thousand, two hundred thirty-nine".