12172383 has 8 divisors (see below), whose sum is σ = 18033200. Its totient is φ = 8114904.

The previous prime is 12172361. The next prime is 12172387. The reversal of 12172383 is 38327121.

It is not a de Polignac number, because 12172383 - 2¹² = 12168287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 450829 = 12172383 / (1 + 2 + 1 + 7 + 2 + 3 + 8 + 3).

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12172387) 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, 225388 + ... + 225441.

It is an arithmetic number, because the mean of its divisors is an integer number (2254150).

Almost surely, 2^12172383 is an apocalyptic number.

12172383 is a deficient number, since it is larger than the sum of its proper divisors (5860817).

12172383 is an equidigital number, since it uses as much as digits as its factorization.

12172383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450838 (or 450832 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 12172383 is about 3488.8942374340. The cubic root of 12172383 is about 230.0339143436.

It can be divided in two parts, 1217 and 2383, that added together give a square (3600 = 60²).

The spelling of 12172383 in words is "twelve million, one hundred seventy-two thousand, three hundred eighty-three".