138914184 has 32 divisors (see below), whose sum is σ = 347711040. Its totient is φ = 46248000.

The previous prime is 138914179. The next prime is 138914201. The reversal of 138914184 is 481419831.

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 in 7 ways as a sum of consecutive naturals, for example, 19509 + ... + 25659.

It is an arithmetic number, because the mean of its divisors is an integer number (10865970).

Almost surely, 2^138914184 is an apocalyptic number.

It is an amenable number.

138914184 is an abundant number, since it is smaller than the sum of its proper divisors (208796856).

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

138914184 is a wasteful number, since it uses less digits than its factorization.

138914184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7101 (or 7097 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 138914184 is about 11786.1861515929. The cubic root of 138914184 is about 517.9035215338.

The spelling of 138914184 in words is "one hundred thirty-eight million, nine hundred fourteen thousand, one hundred eighty-four".