522423131 has 4 divisors (see below), whose sum is σ = 523422552. Its totient is φ = 521423712.

The previous prime is 522423119. The next prime is 522423133. The reversal of 522423131 is 131324225.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 522423131 - 2¹⁰ = 522422107 is a prime.

It is a super-2 number, since 2×522423131² = 545851855607686322, 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 = 522423097 and 522423106.

It is not an unprimeable number, because it can be changed into a prime (522423133) 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 3 ways as a sum of consecutive naturals, for example, 498926 + ... + 499971.

It is an arithmetic number, because the mean of its divisors is an integer number (130855638).

Almost surely, 2^522423131 is an apocalyptic number.

522423131 is a deficient number, since it is larger than the sum of its proper divisors (999421).

522423131 is an equidigital number, since it uses as much as digits as its factorization.

522423131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999420.

The product of its digits is 1440, while the sum is 23.

The square root of 522423131 is about 22856.5774122024. The cubic root of 522423131 is about 805.3922864594.

Adding to 522423131 its reverse (131324225), we get a palindrome (653747356).

The spelling of 522423131 in words is "five hundred twenty-two million, four hundred twenty-three thousand, one hundred thirty-one".