12192917 has 4 divisors (see below), whose sum is σ = 13301376. Its totient is φ = 11084460.

The previous prime is 12192899. The next prime is 12192919. The reversal of 12192917 is 71929121.

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 12192917 - 2⁶ = 12192853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12192919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554213 + ... + 554234.

It is an arithmetic number, because the mean of its divisors is an integer number (3325344).

Almost surely, 2^12192917 is an apocalyptic number.

It is an amenable number.

12192917 is a deficient number, since it is larger than the sum of its proper divisors (1108459).

12192917 is a wasteful number, since it uses less digits than its factorization.

12192917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108458.

The product of its digits is 2268, while the sum is 32.

The square root of 12192917 is about 3491.8357636063. The cubic root of 12192917 is about 230.1631923110.

The spelling of 12192917 in words is "twelve million, one hundred ninety-two thousand, nine hundred seventeen".