54139000 has 32 divisors (see below), whose sum is σ = 126687600. Its totient is φ = 21655200.

The previous prime is 54138947. The next prime is 54139003. The reversal of 54139000 is 93145.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54139003) 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, 26070 + ... + 28069.

Almost surely, 2^54139000 is an apocalyptic number.

54139000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

54139000 is an abundant number, since it is smaller than the sum of its proper divisors (72548600).

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

54139000 is a wasteful number, since it uses less digits than its factorization.

54139000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54160 (or 54146 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 54139000 is about 7357.9209019940. The cubic root of 54139000 is about 378.3003501081.

The spelling of 54139000 in words is "fifty-four million, one hundred thirty-nine thousand".