137128746 has 16 divisors (see below), whose sum is σ = 274605408. Its totient is φ = 45651600.

The previous prime is 137128727. The next prime is 137128769. The reversal of 137128746 is 647821731.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9225 + ... + 18956.

It is an arithmetic number, because the mean of its divisors is an integer number (17162838).

Almost surely, 2^137128746 is an apocalyptic number.

137128746 is an abundant number, since it is smaller than the sum of its proper divisors (137476662).

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

137128746 is a wasteful number, since it uses less digits than its factorization.

137128746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28997.

The product of its digits is 56448, while the sum is 39.

The square root of 137128746 is about 11710.1983757749. The cubic root of 137128746 is about 515.6751079605.

The spelling of 137128746 in words is "one hundred thirty-seven million, one hundred twenty-eight thousand, seven hundred forty-six".