137672025 has 24 divisors (see below), whose sum is σ = 232916640. Its totient is φ = 71715840.

The previous prime is 137672021. The next prime is 137672027. The reversal of 137672025 is 520276731.

It is not a de Polignac number, because 137672025 - 2² = 137672021 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (137672021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18120 + ... + 24569.

It is an arithmetic number, because the mean of its divisors is an integer number (9704860).

Almost surely, 2^137672025 is an apocalyptic number.

137672025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

137672025 is a deficient number, since it is larger than the sum of its proper divisors (95244615).

137672025 is a wasteful number, since it uses less digits than its factorization.

137672025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42745 (or 42740 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 137672025 is about 11733.3722773975. The cubic root of 137672025 is about 516.3552140711.

The spelling of 137672025 in words is "one hundred thirty-seven million, six hundred seventy-two thousand, twenty-five".