23144131 has 4 divisors (see below), whose sum is σ = 23708664. Its totient is φ = 22579600.

The previous prime is 23144111. The next prime is 23144137. The reversal of 23144131 is 13144132.

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 23144131 - 2¹⁷ = 23013059 is a prime.

It is a super-2 number, since 2×23144131² = 1071301599490322, 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 = 23144099 and 23144108.

It is not an unprimeable number, because it can be changed into a prime (23144137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282205 + ... + 282286.

It is an arithmetic number, because the mean of its divisors is an integer number (5927166).

Almost surely, 2^23144131 is an apocalyptic number.

23144131 is a deficient number, since it is larger than the sum of its proper divisors (564533).

23144131 is an equidigital number, since it uses as much as digits as its factorization.

23144131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564532.

The product of its digits is 288, while the sum is 19.

The square root of 23144131 is about 4810.8347508515. The cubic root of 23144131 is about 284.9795040149.

Adding to 23144131 its reverse (13144132), we get a palindrome (36288263).

Subtracting from 23144131 its reverse (13144132), we obtain a palindrome (9999999).

The spelling of 23144131 in words is "twenty-three million, one hundred forty-four thousand, one hundred thirty-one".