12192931 has 4 divisors (see below), whose sum is σ = 12207712. Its totient is φ = 12178152.

The previous prime is 12192923. The next prime is 12192953. The reversal of 12192931 is 13929121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12192931 - 2³ = 12192923 is a prime.

It is a super-2 number, since 2×12192931² = 297335132741522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12192931.

It is not an unprimeable number, because it can be changed into a prime (12192031) 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, 6075 + ... + 7828.

It is an arithmetic number, because the mean of its divisors is an integer number (3051928).

Almost surely, 2^12192931 is an apocalyptic number.

12192931 is a deficient number, since it is larger than the sum of its proper divisors (14781).

12192931 is an equidigital number, since it uses as much as digits as its factorization.

12192931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14780.

The product of its digits is 972, while the sum is 28.

The square root of 12192931 is about 3491.8377682819. The cubic root of 12192931 is about 230.1632804027.

The spelling of 12192931 in words is "twelve million, one hundred ninety-two thousand, nine hundred thirty-one".