23144130 has 40 divisors (see below), whose sum is σ = 62234172. Its totient is φ = 6171552.

The previous prime is 23144111. The next prime is 23144137. The reversal of 23144130 is 3144132.

It can be written as a sum of positive squares in 2 ways, for example, as 18896409 + 4247721 = 4347^2 + 2061^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13477 + ... + 15096.

Almost surely, 2^23144130 is an apocalyptic number.

23144130 is an abundant number, since it is smaller than the sum of its proper divisors (39090042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23144130 is a wasteful number, since it uses less digits than its factorization.

23144130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28592 (or 28583 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23144130 is about 4810.8346469194. The cubic root of 23144130 is about 284.9794999105.

Adding to 23144130 its reverse (3144132), we get a palindrome (26288262).

The spelling of 23144130 in words is "twenty-three million, one hundred forty-four thousand, one hundred thirty".