505152131 has 24 divisors (see below), whose sum is σ = 577432800. Its totient is φ = 441056000.

The previous prime is 505152119. The next prime is 505152133. The reversal of 505152131 is 131251505.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-505152131 is a prime.

It is a super-2 number, since 2×505152131² = 510357350907682322, 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 = 505152097 and 505152106.

It is not an unprimeable number, because it can be changed into a prime (505152133) 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 23 ways as a sum of consecutive naturals, for example, 1259531 + ... + 1259931.

It is an arithmetic number, because the mean of its divisors is an integer number (24059700).

Almost surely, 2^505152131 is an apocalyptic number.

505152131 is a deficient number, since it is larger than the sum of its proper divisors (72280669).

505152131 is a wasteful number, since it uses less digits than its factorization.

505152131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 505152131 is about 22475.5896696839. The cubic root of 505152131 is about 796.4173815687.

The spelling of 505152131 in words is "five hundred five million, one hundred fifty-two thousand, one hundred thirty-one".