504142531 has 8 divisors (see below), whose sum is σ = 534291120. Its totient is φ = 474048768.

The previous prime is 504142487. The next prime is 504142577. The reversal of 504142531 is 135241405.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504142531 is a prime.

It is a super-2 number, since 2×504142531² = 508319383126171922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 504142496 and 504142505.

It is not an unprimeable number, because it can be changed into a prime (504142031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6060 + ... + 32326.

It is an arithmetic number, because the mean of its divisors is an integer number (66786390).

Almost surely, 2^504142531 is an apocalyptic number.

504142531 is a deficient number, since it is larger than the sum of its proper divisors (30148589).

504142531 is a wasteful number, since it uses less digits than its factorization.

504142531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27413.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 504142531 is about 22453.1185139169. The cubic root of 504142531 is about 795.8864528953.

Adding to 504142531 its reverse (135241405), we get a palindrome (639383936).

The spelling of 504142531 in words is "five hundred four million, one hundred forty-two thousand, five hundred thirty-one".