54012143 has 4 divisors (see below), whose sum is σ = 54129768. Its totient is φ = 53894520.

The previous prime is 54012139. The next prime is 54012151. The reversal of 54012143 is 34121045.

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 54012143 - 2² = 54012139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54012103) 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, 58121 + ... + 59042.

It is an arithmetic number, because the mean of its divisors is an integer number (13532442).

Almost surely, 2^54012143 is an apocalyptic number.

54012143 is a deficient number, since it is larger than the sum of its proper divisors (117625).

54012143 is a wasteful number, since it uses less digits than its factorization.

54012143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117624.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 54012143 is about 7349.2954084048. The cubic root of 54012143 is about 378.0046447364.

Adding to 54012143 its reverse (34121045), we get a palindrome (88133188).

The spelling of 54012143 in words is "fifty-four million, twelve thousand, one hundred forty-three".