22635131 has 4 divisors (see below), whose sum is σ = 22645200. Its totient is φ = 22625064.

The previous prime is 22635113. The next prime is 22635149. The reversal of 22635131 is 13153622.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (22635113) and next prime (22635149).

It is a cyclic number.

It is not a de Polignac number, because 22635131 - 2¹⁰ = 22634107 is a prime.

It is a super-2 number, since 2×22635131² = 1024698310774322, 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 = 22635097 and 22635106.

It is not an unprimeable number, because it can be changed into a prime (22635181) 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, 50 + ... + 6728.

It is an arithmetic number, because the mean of its divisors is an integer number (5661300).

Almost surely, 2^22635131 is an apocalyptic number.

22635131 is a deficient number, since it is larger than the sum of its proper divisors (10069).

22635131 is an equidigital number, since it uses as much as digits as its factorization.

22635131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068.

The product of its digits is 1080, while the sum is 23.

The square root of 22635131 is about 4757.6392254983. The cubic root of 22635131 is about 282.8748504979.

Adding to 22635131 its reverse (13153622), we get a palindrome (35788753).

The spelling of 22635131 in words is "twenty-two million, six hundred thirty-five thousand, one hundred thirty-one".