54189143 has 4 divisors (see below), whose sum is σ = 54405288. Its totient is φ = 53973000.

The previous prime is 54189137. The next prime is 54189193. The reversal of 54189143 is 34198145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34198145 = 5 ⋅6839629.

It is a cyclic number.

It is not a de Polignac number, because 54189143 - 2²² = 49994839 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 (54189103) 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, 107696 + ... + 108197.

It is an arithmetic number, because the mean of its divisors is an integer number (13601322).

Almost surely, 2^54189143 is an apocalyptic number.

54189143 is a deficient number, since it is larger than the sum of its proper divisors (216145).

54189143 is a wasteful number, since it uses less digits than its factorization.

54189143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216144.

The product of its digits is 17280, while the sum is 35.

The square root of 54189143 is about 7361.3275297327. The cubic root of 54189143 is about 378.4171067354.

The spelling of 54189143 in words is "fifty-four million, one hundred eighty-nine thousand, one hundred forty-three".