137973984 has 24 divisors (see below), whose sum is σ = 362181960. Its totient is φ = 45991296.

The previous prime is 137973973. The next prime is 137974013. The reversal of 137973984 is 489379731.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718519 + ... + 718710.

It is an arithmetic number, because the mean of its divisors is an integer number (15090915).

Almost surely, 2^137973984 is an apocalyptic number.

It is an amenable number.

137973984 is an abundant number, since it is smaller than the sum of its proper divisors (224207976).

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

137973984 is a wasteful number, since it uses less digits than its factorization.

137973984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437242 (or 1437234 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The square root of 137973984 is about 11746.2327577824. The cubic root of 137973984 is about 516.7324493880.

The spelling of 137973984 in words is "one hundred thirty-seven million, nine hundred seventy-three thousand, nine hundred eighty-four".