23172053 has 4 divisors (see below), whose sum is σ = 23247840. Its totient is φ = 23096268.

The previous prime is 23172049. The next prime is 23172059. The reversal of 23172053 is 35027132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23172053 - 2² = 23172049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23172059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37433 + ... + 38046.

It is an arithmetic number, because the mean of its divisors is an integer number (5811960).

Almost surely, 2^23172053 is an apocalyptic number.

It is an amenable number.

23172053 is a deficient number, since it is larger than the sum of its proper divisors (75787).

23172053 is an equidigital number, since it uses as much as digits as its factorization.

23172053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75786.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 23172053 is about 4813.7358672864. The cubic root of 23172053 is about 285.0940614938.

Adding to 23172053 its reverse (35027132), we get a palindrome (58199185).

The spelling of 23172053 in words is "twenty-three million, one hundred seventy-two thousand, fifty-three".