505132131 has 12 divisors (see below), whose sum is σ = 783470472. Its totient is φ = 288646848.

The previous prime is 505132129. The next prime is 505132139. The reversal of 505132131 is 131231505.

It is not a de Polignac number, because 505132131 - 2¹ = 505132129 is a prime.

It is a super-2 number, since 2×505132131² = 510316939537202322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 505132098 and 505132107.

It is not an unprimeable number, because it can be changed into a prime (505132139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1717990 + ... + 1718283.

It is an arithmetic number, because the mean of its divisors is an integer number (65289206).

Almost surely, 2^505132131 is an apocalyptic number.

505132131 is a deficient number, since it is larger than the sum of its proper divisors (278338341).

505132131 is a wasteful number, since it uses less digits than its factorization.

505132131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436290 (or 3436283 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 505132131 is about 22475.1447381324. The cubic root of 505132131 is about 796.4068708355.

Adding to 505132131 its reverse (131231505), we get a palindrome (636363636).

The spelling of 505132131 in words is "five hundred five million, one hundred thirty-two thousand, one hundred thirty-one".