12172373 has 8 divisors (see below), whose sum is σ = 12634680. Its totient is φ = 11712960.

The previous prime is 12172361. The next prime is 12172387. The reversal of 12172373 is 37327121.

It can be written as a sum of positive squares in 4 ways, for example, as 734449 + 11437924 = 857^2 + 3382^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12172373 - 2⁶ = 12172309 is a prime.

It is a super-2 number, since 2×12172373² = 296333328902258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12172333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11711 + ... + 12707.

It is an arithmetic number, because the mean of its divisors is an integer number (1579335).

Almost surely, 2^12172373 is an apocalyptic number.

It is an amenable number.

12172373 is a deficient number, since it is larger than the sum of its proper divisors (462307).

12172373 is an equidigital number, since it uses as much as digits as its factorization.

12172373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447.

The product of its digits is 1764, while the sum is 26.

The square root of 12172373 is about 3488.8928043149. The cubic root of 12172373 is about 230.0338513502.

Adding to 12172373 its reverse (37327121), we get a palindrome (49499494).

The spelling of 12172373 in words is "twelve million, one hundred seventy-two thousand, three hundred seventy-three".