137449656 has 128 divisors (see below), whose sum is σ = 404928000. Its totient is φ = 43110144.

The previous prime is 137449643. The next prime is 137449661. The reversal of 137449656 is 656944731.

Its product of digits (544320) is a multiple of the sum of its prime divisors (480).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362475 + ... + 362853.

It is an arithmetic number, because the mean of its divisors is an integer number (3163500).

Almost surely, 2^137449656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137449656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202464000).

137449656 is an abundant number, since it is smaller than the sum of its proper divisors (267478344).

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

137449656 is a wasteful number, since it uses less digits than its factorization.

137449656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 480 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 137449656 is about 11723.8925276548. The cubic root of 137449656 is about 516.0770571778.

The spelling of 137449656 in words is "one hundred thirty-seven million, four hundred forty-nine thousand, six hundred fifty-six".