23225131 has 4 divisors (see below), whose sum is σ = 23519200. Its totient is φ = 22931064.

The previous prime is 23225129. The next prime is 23225149. The reversal of 23225131 is 13152232.

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 23225131 - 2¹ = 23225129 is a prime.

It is a super-2 number, since 2×23225131² = 1078813419934322, 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 = 23225099 and 23225108.

It is not an unprimeable number, because it can be changed into a prime (23225431) 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, 146916 + ... + 147073.

It is an arithmetic number, because the mean of its divisors is an integer number (5879800).

Almost surely, 2^23225131 is an apocalyptic number.

23225131 is a deficient number, since it is larger than the sum of its proper divisors (294069).

23225131 is an equidigital number, since it uses as much as digits as its factorization.

23225131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294068.

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

The square root of 23225131 is about 4819.2458953658. The cubic root of 23225131 is about 285.3115747097.

Adding to 23225131 its reverse (13152232), we get a palindrome (36377363).

The spelling of 23225131 in words is "twenty-three million, two hundred twenty-five thousand, one hundred thirty-one".