54198143999 has 4 divisors (see below), whose sum is σ = 54282434136. Its totient is φ = 54113853864.

The previous prime is 54198143983. The next prime is 54198144031. The reversal of 54198143999 is 99934189145.

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 54198143999 - 2⁴ = 54198143983 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 (54198143099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42144104 + ... + 42145389.

It is an arithmetic number, because the mean of its divisors is an integer number (13570608534).

Almost surely, 2^54198143999 is an apocalyptic number.

54198143999 is a deficient number, since it is larger than the sum of its proper divisors (84290137).

54198143999 is an equidigital number, since it uses as much as digits as its factorization.

54198143999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84290136.

The product of its digits is 12597120, while the sum is 62.

It can be divided in two parts, 5419 and 8143999, that added together give a palindrome (8149418).

The spelling of 54198143999 in words is "fifty-four billion, one hundred ninety-eight million, one hundred forty-three thousand, nine hundred ninety-nine".