22454131 has 4 divisors (see below), whose sum is σ = 25661872. Its totient is φ = 19246392.

The previous prime is 22454123. The next prime is 22454147. The reversal of 22454131 is 13145422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13145422 = 2 ⋅6572711.

It is a cyclic number.

It is not a de Polignac number, because 22454131 - 2³ = 22454123 is a prime.

It is a super-2 number, since 2×22454131² = 1008375997930322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22454171) 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, 1603860 + ... + 1603873.

It is an arithmetic number, because the mean of its divisors is an integer number (6415468).

Almost surely, 2^22454131 is an apocalyptic number.

22454131 is a deficient number, since it is larger than the sum of its proper divisors (3207741).

22454131 is an equidigital number, since it uses as much as digits as its factorization.

22454131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3207740.

The product of its digits is 960, while the sum is 22.

The square root of 22454131 is about 4738.5790064111. The cubic root of 22454131 is about 282.1188364562.

Adding to 22454131 its reverse (13145422), we get a palindrome (35599553).

The spelling of 22454131 in words is "twenty-two million, four hundred fifty-four thousand, one hundred thirty-one".