12196831 has 4 divisors (see below), whose sum is σ = 12727152. Its totient is φ = 11666512.

The previous prime is 12196819. The next prime is 12196853. The reversal of 12196831 is 13869121.

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 12196831 - 2¹⁷ = 12065759 is a prime.

It is a super-2 number, since 2×12196831² = 297525372885122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12196793 and 12196802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12196031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265126 + ... + 265171.

It is an arithmetic number, because the mean of its divisors is an integer number (3181788).

Almost surely, 2^12196831 is an apocalyptic number.

12196831 is a deficient number, since it is larger than the sum of its proper divisors (530321).

12196831 is an equidigital number, since it uses as much as digits as its factorization.

12196831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530320.

The product of its digits is 2592, while the sum is 31.

The square root of 12196831 is about 3492.3961688216. The cubic root of 12196831 is about 230.1878176012.

The spelling of 12196831 in words is "twelve million, one hundred ninety-six thousand, eight hundred thirty-one".