54100243 has 4 divisors (see below), whose sum is σ = 55251360. Its totient is φ = 52949128.

The previous prime is 54100231. The next prime is 54100259. The reversal of 54100243 is 34200145.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54100243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54100243.

It is not an unprimeable number, because it can be changed into a prime (54100043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575488 + ... + 575581.

It is an arithmetic number, because the mean of its divisors is an integer number (13812840).

Almost surely, 2^54100243 is an apocalyptic number.

54100243 is a deficient number, since it is larger than the sum of its proper divisors (1151117).

54100243 is a wasteful number, since it uses less digits than its factorization.

54100243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151116.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 54100243 is about 7355.2867381225. The cubic root of 54100243 is about 378.2100560702.

Adding to 54100243 its reverse (34200145), we get a palindrome (88300388).

The spelling of 54100243 in words is "fifty-four million, one hundred thousand, two hundred forty-three".