137432172 has 12 divisors (see below), whose sum is σ = 320675096. Its totient is φ = 45810720.

The previous prime is 137432167. The next prime is 137432173. The reversal of 137432172 is 271234731.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (137432173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5726329 + ... + 5726352.

Almost surely, 2^137432172 is an apocalyptic number.

137432172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

137432172 is an abundant number, since it is smaller than the sum of its proper divisors (183242924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137432172 is a wasteful number, since it uses less digits than its factorization.

137432172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11452688 (or 11452686 counting only the distinct ones).

The product of its digits is 7056, while the sum is 30.

The square root of 137432172 is about 11723.1468471567. The cubic root of 137432172 is about 516.0551740774.

The spelling of 137432172 in words is "one hundred thirty-seven million, four hundred thirty-two thousand, one hundred seventy-two".