22131532 has 12 divisors (see below), whose sum is σ = 39365536. Its totient is φ = 10884240.

The previous prime is 22131521. The next prime is 22131547. The reversal of 22131532 is 23513122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45108 + ... + 45595.

Almost surely, 2^22131532 is an apocalyptic number.

It is an amenable number.

22131532 is a deficient number, since it is larger than the sum of its proper divisors (17234004).

22131532 is a wasteful number, since it uses less digits than its factorization.

22131532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90768 (or 90766 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 22131532 is about 4704.4162230823. The cubic root of 22131532 is about 280.7612448306.

Adding to 22131532 its reverse (23513122), we get a palindrome (45644654).

The spelling of 22131532 in words is "twenty-two million, one hundred thirty-one thousand, five hundred thirty-two".