12172097 has 8 divisors (see below), whose sum is σ = 13942656. Its totient is φ = 10409472.

The previous prime is 12172087. The next prime is 12172117. The reversal of 12172097 is 79027121.

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 12172097 - 2⁴ = 12172081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12172087) 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 7 ways as a sum of consecutive naturals, for example, 1793 + ... + 5249.

It is an arithmetic number, because the mean of its divisors is an integer number (1742832).

Almost surely, 2^12172097 is an apocalyptic number.

It is an amenable number.

12172097 is a deficient number, since it is larger than the sum of its proper divisors (1770559).

12172097 is an equidigital number, since it uses as much as digits as its factorization.

12172097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 12172097 is about 3488.8532499949. The cubic root of 12172097 is about 230.0321127185.

The spelling of 12172097 in words is "twelve million, one hundred seventy-two thousand, ninety-seven".