505830131 has 8 divisors (see below), whose sum is σ = 523129728. Its totient is φ = 488592000.

The previous prime is 505830109. The next prime is 505830133. The reversal of 505830131 is 131038505.

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-505830131 is a prime.

It is a super-2 number, since 2×505830131² = 511728242854954322, which contains 22 as substring.

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 505830131.

It is not an unprimeable number, because it can be changed into a prime (505830133) 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 7 ways as a sum of consecutive naturals, for example, 1691 + ... + 31851.

It is an arithmetic number, because the mean of its divisors is an integer number (65391216).

Almost surely, 2^505830131 is an apocalyptic number.

505830131 is a deficient number, since it is larger than the sum of its proper divisors (17299597).

505830131 is a wasteful number, since it uses less digits than its factorization.

505830131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30733.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 505830131 is about 22490.6676423800. The cubic root of 505830131 is about 796.7735314319.

Adding to 505830131 its reverse (131038505), we get a palindrome (636868636).

The spelling of 505830131 in words is "five hundred five million, eight hundred thirty thousand, one hundred thirty-one".