23172 has 12 divisors (see below), whose sum is σ = 54096. Its totient is φ = 7720.

The previous prime is 23167. The next prime is 23173. The reversal of 23172 is 27132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (23173) by changing a digit.

23172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954 + ... + 977.

It is an arithmetic number, because the mean of its divisors is an integer number (4508).

2²³¹⁷² is an apocalyptic number.

It is an amenable number.

23172 is an abundant number, since it is smaller than the sum of its proper divisors (30924).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27048).

23172 is a wasteful number, since it uses less digits than its factorization.

23172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938 (or 1936 counting only the distinct ones).

The product of its digits is 84, while the sum is 15.

The square root of 23172 is about 152.2235198647. The cubic root of 23172 is about 28.5093844134.

It can be divided in two parts, 231 and 72, that added together give a palindrome (303).

The spelling of 23172 in words is "twenty-three thousand, one hundred seventy-two", and thus it is an iban number.