137244428 has 12 divisors (see below), whose sum is σ = 240261840. Its totient is φ = 68598192.

The previous prime is 137244413. The next prime is 137244431. The reversal of 137244428 is 824442731.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15050 + ... + 22382.

It is an arithmetic number, because the mean of its divisors is an integer number (20021820).

Almost surely, 2^137244428 is an apocalyptic number.

It is an amenable number.

137244428 is a deficient number, since it is larger than the sum of its proper divisors (103017412).

137244428 is a wasteful number, since it uses less digits than its factorization.

137244428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12016 (or 12014 counting only the distinct ones).

The product of its digits is 43008, while the sum is 35.

The square root of 137244428 is about 11715.1367042813. The cubic root of 137244428 is about 515.8200752816.

The spelling of 137244428 in words is "one hundred thirty-seven million, two hundred forty-four thousand, four hundred twenty-eight".