137904426 has 36 divisors (see below), whose sum is σ = 328430466. Its totient is φ = 41788560.

The previous prime is 137904407. The next prime is 137904427. The reversal of 137904426 is 624409731.

It can be written as a sum of positive squares in only one way, i.e., 135699201 + 2205225 = 11649^2 + 1485^2 .

It is not an unprimeable number, because it can be changed into a prime (137904427) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 29481 + ... + 33836.

Almost surely, 2^137904426 is an apocalyptic number.

137904426 is an abundant number, since it is smaller than the sum of its proper divisors (190526040).

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

137904426 is a wasteful number, since it uses less digits than its factorization.

137904426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63347 (or 63333 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 137904426 is about 11743.2715203218. The cubic root of 137904426 is about 516.6455998810.

The spelling of 137904426 in words is "one hundred thirty-seven million, nine hundred four thousand, four hundred twenty-six".