137938228 has 6 divisors (see below), whose sum is σ = 241391906. Its totient is φ = 68969112.

The previous prime is 137938219. The next prime is 137938231. The reversal of 137938228 is 822839731.

It can be written as a sum of positive squares in only one way, i.e., 105925264 + 32012964 = 10292^2 + 5658^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17242275 + ... + 17242282.

Almost surely, 2^137938228 is an apocalyptic number.

It is an amenable number.

137938228 is a deficient number, since it is larger than the sum of its proper divisors (103453678).

137938228 is a wasteful number, since it uses less digits than its factorization.

137938228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34484561 (or 34484559 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 137938228 is about 11744.7106392623. The cubic root of 137938228 is about 516.6878084076.

The spelling of 137938228 in words is "one hundred thirty-seven million, nine hundred thirty-eight thousand, two hundred twenty-eight".