137505748 has 12 divisors (see below), whose sum is σ = 241272640. Its totient is φ = 68570712.

The previous prime is 137505713. The next prime is 137505749. The reversal of 137505748 is 847505731.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 137505748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137505749) 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, 43836 + ... + 46867.

Almost surely, 2^137505748 is an apocalyptic number.

It is an amenable number.

137505748 is a deficient number, since it is larger than the sum of its proper divisors (103766892).

137505748 is a wasteful number, since it uses less digits than its factorization.

137505748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91086 (or 91084 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 137505748 is about 11726.2844925407. The cubic root of 137505748 is about 516.1472498051.

The spelling of 137505748 in words is "one hundred thirty-seven million, five hundred five thousand, seven hundred forty-eight".