23144553 has 12 divisors (see below), whose sum is σ = 33531888. Its totient is φ = 15383160.

The previous prime is 23144503. The next prime is 23144567. The reversal of 23144553 is 35544132.

It is not a de Polignac number, because 23144553 - 2⁹ = 23144041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23144503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583 + ... + 6828.

It is an arithmetic number, because the mean of its divisors is an integer number (2794324).

Almost surely, 2^23144553 is an apocalyptic number.

It is an amenable number.

23144553 is a deficient number, since it is larger than the sum of its proper divisors (10387335).

23144553 is a wasteful number, since it uses less digits than its factorization.

23144553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7764 (or 7761 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 23144553 is about 4810.8786099838. The cubic root of 23144553 is about 284.9812360684.

Adding to 23144553 its reverse (35544132), we get a palindrome (58688685).

The spelling of 23144553 in words is "twenty-three million, one hundred forty-four thousand, five hundred fifty-three".