12492197 has 4 divisors (see below), whose sum is σ = 13035360. Its totient is φ = 11949036.

The previous prime is 12492187. The next prime is 12492209. The reversal of 12492197 is 79129421.

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 a de Polignac number, because none of the positive numbers 2^k-12492197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12492107) 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, 271547 + ... + 271592.

It is an arithmetic number, because the mean of its divisors is an integer number (3258840).

Almost surely, 2^12492197 is an apocalyptic number.

It is an amenable number.

12492197 is a deficient number, since it is larger than the sum of its proper divisors (543163).

12492197 is an equidigital number, since it uses as much as digits as its factorization.

12492197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543162.

The product of its digits is 9072, while the sum is 35.

The square root of 12492197 is about 3534.4302228223. The cubic root of 12492197 is about 232.0311405385.

The spelling of 12492197 in words is "twelve million, four hundred ninety-two thousand, one hundred ninety-seven".