23144129 has 4 divisors (see below), whose sum is σ = 23769684. Its totient is φ = 22518576.

The previous prime is 23144111. The next prime is 23144137. The reversal of 23144129 is 92144132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17977600 + 5166529 = 4240^2 + 2273^2 .

It is a cyclic number.

It is not a de Polignac number, because 23144129 - 2⁸ = 23143873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23144098 and 23144107.

It is not an unprimeable number, because it can be changed into a prime (23144629) 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, 312722 + ... + 312795.

It is an arithmetic number, because the mean of its divisors is an integer number (5942421).

Almost surely, 2^23144129 is an apocalyptic number.

It is an amenable number.

23144129 is a deficient number, since it is larger than the sum of its proper divisors (625555).

23144129 is an equidigital number, since it uses as much as digits as its factorization.

23144129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625554.

The product of its digits is 1728, while the sum is 26.

The square root of 23144129 is about 4810.8345429873. The cubic root of 23144129 is about 284.9794958061.

The spelling of 23144129 in words is "twenty-three million, one hundred forty-four thousand, one hundred twenty-nine".