23161056 has 24 divisors (see below), whose sum is σ = 60798024. Its totient is φ = 7720320.

The previous prime is 23161051. The next prime is 23161079. The reversal of 23161056 is 65016132.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23161051) 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, 120535 + ... + 120726.

It is an arithmetic number, because the mean of its divisors is an integer number (2533251).

Almost surely, 2^23161056 is an apocalyptic number.

It is an amenable number.

23161056 is an abundant number, since it is smaller than the sum of its proper divisors (37636968).

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

23161056 is a wasteful number, since it uses less digits than its factorization.

23161056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241274 (or 241266 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 23161056 is about 4812.5934796116. The cubic root of 23161056 is about 285.0489543484.

Adding to 23161056 its reverse (65016132), we get a palindrome (88177188).

The spelling of 23161056 in words is "twenty-three million, one hundred sixty-one thousand, fifty-six".