137974473 has 36 divisors (see below), whose sum is σ = 246654720. Its totient is φ = 72772128.

The previous prime is 137974457. The next prime is 137974477. The reversal of 137974473 is 374479731.

It is not a de Polignac number, because 137974473 - 2⁴ = 137974457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137974477) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4168 + ... + 17126.

It is an arithmetic number, because the mean of its divisors is an integer number (6851520).

Almost surely, 2^137974473 is an apocalyptic number.

137974473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

137974473 is a deficient number, since it is larger than the sum of its proper divisors (108680247).

137974473 is a wasteful number, since it uses less digits than its factorization.

137974473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12998 (or 12982 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 137974473 is about 11746.2535729483. The cubic root of 137974473 is about 516.7330598458.

The spelling of 137974473 in words is "one hundred thirty-seven million, nine hundred seventy-four thousand, four hundred seventy-three".