136913857255 has 16 divisors (see below), whose sum is σ = 187780852224. Its totient is φ = 93877149600.

The previous prime is 136913857247. The next prime is 136913857303. The reversal of 136913857255 is 552758319631.

It is a happy number.

136913857255 is a nontrivial binomial coefficient, being equal to C(523286, 2).

It is not a de Polignac number, because 136913857255 - 2³ = 136913857247 is a prime.

It is a super-2 number, since 2×136913857255² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136913857196 and 136913857205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392464 + ... + 654106.

It is an arithmetic number, because the mean of its divisors is an integer number (11736303264).

Almost surely, 2^136913857255 is an apocalyptic number.

136913857255 is the 523285-th triangular number and also the 261643-rd hexagonal number.

136913857255 is the 174429-th centered nonagonal number.

136913857255 is a deficient number, since it is larger than the sum of its proper divisors (50866994969).

136913857255 is a wasteful number, since it uses less digits than its factorization.

136913857255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276606.

The product of its digits is 6804000, while the sum is 55.

The spelling of 136913857255 in words is "one hundred thirty-six billion, nine hundred thirteen million, eight hundred fifty-seven thousand, two hundred fifty-five".