137438225 has 12 divisors (see below), whose sum is σ = 177833856. Its totient is φ = 105169680.

The previous prime is 137438207. The next prime is 137438269. The reversal of 137438225 is 522834731.

It is a de Polignac number, because none of the positive numbers 2^k-137438225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118937 + ... + 120086.

It is an arithmetic number, because the mean of its divisors is an integer number (14819488).

Almost surely, 2^137438225 is an apocalyptic number.

It is an amenable number.

137438225 is a deficient number, since it is larger than the sum of its proper divisors (40395631).

137438225 is a wasteful number, since it uses less digits than its factorization.

137438225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239056 (or 239051 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 137438225 is about 11723.4050087848. The cubic root of 137438225 is about 516.0627502659.

The spelling of 137438225 in words is "one hundred thirty-seven million, four hundred thirty-eight thousand, two hundred twenty-five".