137939445604 has 27 divisors (see below), whose sum is σ = 242739067627. Its totient is φ = 68587550144.

The previous prime is 137939445593. The next prime is 137939445613. The reversal of 137939445604 is 406544939731.

The square root of 137939445604 is 371402.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 14738445604 + 123201000000 = 121402^2 + 351000^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 173072934 + ... + 173073730.

Almost surely, 2^137939445604 is an apocalyptic number.

137939445604 is the 371402-nd square number.

It is an amenable number.

137939445604 is a deficient number, since it is larger than the sum of its proper divisors (104799622023).

137939445604 is an frugal number, since it uses more digits than its factorization.

137939445604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 137939445604 in words is "one hundred thirty-seven billion, nine hundred thirty-nine million, four hundred forty-five thousand, six hundred four".