23180144 has 20 divisors (see below), whose sum is σ = 48366696. Its totient is φ = 10698432.

The previous prime is 23180141. The next prime is 23180147. The reversal of 23180144 is 44108132.

It is an interprime number because it is at equal distance from previous prime (23180141) and next prime (23180147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23180141) 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, 55514 + ... + 55929.

Almost surely, 2^23180144 is an apocalyptic number.

It is an amenable number.

23180144 is an abundant number, since it is smaller than the sum of its proper divisors (25186552).

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

23180144 is a wasteful number, since it uses less digits than its factorization.

23180144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111464 (or 111458 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 23180144 is about 4814.5762014948. The cubic root of 23180144 is about 285.1272397887.

Adding to 23180144 its reverse (44108132), we get a palindrome (67288276).

The spelling of 23180144 in words is "twenty-three million, one hundred eighty thousand, one hundred forty-four".