54139188 has 24 divisors (see below), whose sum is σ = 129407040. Its totient is φ = 17606080.

The previous prime is 54139187. The next prime is 54139207. The reversal of 54139188 is 88193145.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54139187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54528 + ... + 55511.

It is an arithmetic number, because the mean of its divisors is an integer number (5391960).

Almost surely, 2^54139188 is an apocalyptic number.

It is an amenable number.

54139188 is an abundant number, since it is smaller than the sum of its proper divisors (75267852).

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

54139188 is a wasteful number, since it uses less digits than its factorization.

54139188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110087 (or 110085 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 54139188 is about 7357.9336773309. The cubic root of 54139188 is about 378.3007879957.

The spelling of 54139188 in words is "fifty-four million, one hundred thirty-nine thousand, one hundred eighty-eight".