137639015025 has 24 divisors (see below), whose sum is σ = 229816284864. Its totient is φ = 72680664000.

The previous prime is 137639015021. The next prime is 137639015089. The reversal of 137639015025 is 520510936731.

It is not a de Polignac number, because 137639015025 - 2² = 137639015021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137639015021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9077509 + ... + 9092658.

It is an arithmetic number, because the mean of its divisors is an integer number (9575678536).

Almost surely, 2^137639015025 is an apocalyptic number.

137639015025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

137639015025 is a deficient number, since it is larger than the sum of its proper divisors (92177269839).

137639015025 is a wasteful number, since it uses less digits than its factorization.

137639015025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18170281 (or 18170276 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 42.

The spelling of 137639015025 in words is "one hundred thirty-seven billion, six hundred thirty-nine million, fifteen thousand, twenty-five".