22532131 has 4 divisors (see below), whose sum is σ = 22704264. Its totient is φ = 22360000.

The previous prime is 22532117. The next prime is 22532161. The reversal of 22532131 is 13123522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13123522 = 2 ⋅6561761.

It is a cyclic number.

It is not a de Polignac number, because 22532131 - 2¹³ = 22523939 is a prime.

It is a super-2 number, since 2×22532131² = 1015393854802322, 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 = 22532099 and 22532108.

It is not an unprimeable number, because it can be changed into a prime (22532161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85870 + ... + 86131.

It is an arithmetic number, because the mean of its divisors is an integer number (5676066).

Almost surely, 2^22532131 is an apocalyptic number.

22532131 is a deficient number, since it is larger than the sum of its proper divisors (172133).

22532131 is a wasteful number, since it uses less digits than its factorization.

22532131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172132.

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

The square root of 22532131 is about 4746.8021867358. The cubic root of 22532131 is about 282.4451288735.

Adding to 22532131 its reverse (13123522), we get a palindrome (35655653).

The spelling of 22532131 in words is "twenty-two million, five hundred thirty-two thousand, one hundred thirty-one".