504968143 has 4 divisors (see below), whose sum is σ = 507887208. Its totient is φ = 502049080.

The previous prime is 504968137. The next prime is 504968159. The reversal of 504968143 is 341869405.

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-504968143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 504968096 and 504968105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504968173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1459273 + ... + 1459618.

It is an arithmetic number, because the mean of its divisors is an integer number (126971802).

Almost surely, 2^504968143 is an apocalyptic number.

504968143 is a deficient number, since it is larger than the sum of its proper divisors (2919065).

504968143 is a wasteful number, since it uses less digits than its factorization.

504968143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919064.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 504968143 is about 22471.4962341185. The cubic root of 504968143 is about 796.3206786642.

The spelling of 504968143 in words is "five hundred four million, nine hundred sixty-eight thousand, one hundred forty-three".