23003144 has 8 divisors (see below), whose sum is σ = 43130910. Its totient is φ = 11501568.

The previous prime is 23003143. The next prime is 23003153. The reversal of 23003144 is 44130032.

It can be written as a sum of positive squares in only one way, i.e., 19624900 + 3378244 = 4430^2 + 1838^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (23003143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1437689 + ... + 1437704.

Almost surely, 2^23003144 is an apocalyptic number.

It is an amenable number.

23003144 is a deficient number, since it is larger than the sum of its proper divisors (20127766).

23003144 is a wasteful number, since it uses less digits than its factorization.

23003144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875399 (or 2875395 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23003144 is about 4796.1592967707. The cubic root of 23003144 is about 284.3996555365.

Adding to 23003144 its reverse (44130032), we get a palindrome (67133176).

The spelling of 23003144 in words is "twenty-three million, three thousand, one hundred forty-four".