504145163 has 4 divisors (see below), whose sum is σ = 504498408. Its totient is φ = 503791920.

The previous prime is 504145153. The next prime is 504145177. The reversal of 504145163 is 361541405.

It is a happy number.

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 504145163 - 2¹⁰ = 504144139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504145133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174473 + ... + 177338.

It is an arithmetic number, because the mean of its divisors is an integer number (126124602).

Almost surely, 2^504145163 is an apocalyptic number.

504145163 is a deficient number, since it is larger than the sum of its proper divisors (353245).

504145163 is a wasteful number, since it uses less digits than its factorization.

504145163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353244.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 504145163 is about 22453.1771248525. The cubic root of 504145163 is about 795.8878379332.

Adding to 504145163 its reverse (361541405), we get a palindrome (865686568).

The spelling of 504145163 in words is "five hundred four million, one hundred forty-five thousand, one hundred sixty-three".