54000123 has 4 divisors (see below), whose sum is σ = 72000168. Its totient is φ = 36000080.

The previous prime is 54000103. The next prime is 54000139. The reversal of 54000123 is 32100045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54000123 - 2¹⁸ = 53737979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54000103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9000018 + ... + 9000023.

It is an arithmetic number, because the mean of its divisors is an integer number (18000042).

Almost surely, 2^54000123 is an apocalyptic number.

54000123 is a deficient number, since it is larger than the sum of its proper divisors (18000045).

54000123 is a wasteful number, since it uses less digits than its factorization.

54000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18000044.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 54000123 is about 7348.4775974347. The cubic root of 54000123 is about 377.9766019503.

Adding to 54000123 its reverse (32100045), we get a palindrome (86100168).

The spelling of 54000123 in words is "fifty-four million, one hundred twenty-three", and thus it is an aban number.