505042131 has 16 divisors (see below), whose sum is σ = 735644160. Its totient is φ = 305653920.

The previous prime is 505042129. The next prime is 505042147. The reversal of 505042131 is 131240505.

It is not a de Polignac number, because 505042131 - 2¹ = 505042129 is a prime.

It is a super-2 number, since 2×505042131² = 510135108170042322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505042098 and 505042107.

It is not an unprimeable number, because it can be changed into a prime (505042121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13750 + ... + 34628.

It is an arithmetic number, because the mean of its divisors is an integer number (45977760).

Almost surely, 2^505042131 is an apocalyptic number.

505042131 is a deficient number, since it is larger than the sum of its proper divisors (230602029).

505042131 is a wasteful number, since it uses less digits than its factorization.

505042131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21626.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 505042131 is about 22473.1424371404. The cubic root of 505042131 is about 796.3595691024.

Adding to 505042131 its reverse (131240505), we get a palindrome (636282636).

The spelling of 505042131 in words is "five hundred five million, forty-two thousand, one hundred thirty-one".