23120144 has 20 divisors (see below), whose sum is σ = 45260124. Its totient is φ = 11440128.

The previous prime is 23120039. The next prime is 23120171. The reversal of 23120144 is 44102132.

It can be written as a sum of positive squares in 2 ways, for example, as 16810000 + 6310144 = 4100^2 + 2512^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5897 + ... + 9000.

Almost surely, 2^23120144 is an apocalyptic number.

It is an amenable number.

23120144 is a deficient number, since it is larger than the sum of its proper divisors (22139980).

23120144 is a wasteful number, since it uses less digits than its factorization.

23120144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15002 (or 14996 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 23120144 is about 4808.3410860712. The cubic root of 23120144 is about 284.8810173286.

Adding to 23120144 its reverse (44102132), we get a palindrome (67222276).

The spelling of 23120144 in words is "twenty-three million, one hundred twenty thousand, one hundred forty-four".