54165139 has 12 divisors (see below), whose sum is σ = 63303744. Its totient is φ = 46209744.

The previous prime is 54165131. The next prime is 54165173. The reversal of 54165139 is 93156145.

It is not a de Polignac number, because 54165139 - 2³ = 54165131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54165131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8449 + ... + 13405.

It is an arithmetic number, because the mean of its divisors is an integer number (5275312).

Almost surely, 2^54165139 is an apocalyptic number.

54165139 is a deficient number, since it is larger than the sum of its proper divisors (9138605).

54165139 is a wasteful number, since it uses less digits than its factorization.

54165139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5194 (or 5187 counting only the distinct ones).

The product of its digits is 16200, while the sum is 34.

The square root of 54165139 is about 7359.6969366952. The cubic root of 54165139 is about 378.3612230578.

The spelling of 54165139 in words is "fifty-four million, one hundred sixty-five thousand, one hundred thirty-nine".