137945228 has 24 divisors (see below), whose sum is σ = 253470000. Its totient is φ = 65596608.

The previous prime is 137945219. The next prime is 137945239. The reversal of 137945228 is 822549731.

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, 1103 + ... + 16646.

It is an arithmetic number, because the mean of its divisors is an integer number (10561250).

Almost surely, 2^137945228 is an apocalyptic number.

It is an amenable number.

137945228 is a deficient number, since it is larger than the sum of its proper divisors (115524772).

137945228 is a wasteful number, since it uses less digits than its factorization.

137945228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17849 (or 17847 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 137945228 is about 11745.0086419721. The cubic root of 137945228 is about 516.6965484394.

The spelling of 137945228 in words is "one hundred thirty-seven million, nine hundred forty-five thousand, two hundred twenty-eight".