54164140 has 48 divisors (see below), whose sum is σ = 117073152. Its totient is φ = 21041856.

The previous prime is 54164137. The next prime is 54164191. The reversal of 54164140 is 4146145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110977 + ... + 111463.

It is an arithmetic number, because the mean of its divisors is an integer number (2439024).

Almost surely, 2^54164140 is an apocalyptic number.

It is an amenable number.

54164140 is an abundant number, since it is smaller than the sum of its proper divisors (62909012).

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

54164140 is a wasteful number, since it uses less digits than its factorization.

54164140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 54164140 is about 7359.6290667397. The cubic root of 54164140 is about 378.3588969295.

The spelling of 54164140 in words is "fifty-four million, one hundred sixty-four thousand, one hundred forty".