136903890225 has 12 divisors (see below), whose sum is σ = 226347765296. Its totient is φ = 73015408080.

The previous prime is 136903890191. The next prime is 136903890239. The reversal of 136903890225 is 522098309631.

It is not a de Polignac number, because 136903890225 - 2²² = 136899695921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 912692527 + ... + 912692676.

Almost surely, 2^136903890225 is an apocalyptic number.

136903890225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136903890225 is a deficient number, since it is larger than the sum of its proper divisors (89443875071).

136903890225 is a wasteful number, since it uses less digits than its factorization.

136903890225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825385216 (or 1825385211 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 136903890225 in words is "one hundred thirty-six billion, nine hundred three million, eight hundred ninety thousand, two hundred twenty-five".