12090497 has 4 divisors (see below), whose sum is σ = 12097860. Its totient is φ = 12083136.

The previous prime is 12090487. The next prime is 12090503. The reversal of 12090497 is 79409021.

12090497 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8737936 + 3352561 = 2956^2 + 1831^2 .

It is a cyclic number.

It is not a de Polignac number, because 12090497 - 2⁸ = 12090241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12090487) 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, 29 + ... + 4917.

It is an arithmetic number, because the mean of its divisors is an integer number (3024465).

Almost surely, 2^12090497 is an apocalyptic number.

It is an amenable number.

12090497 is a deficient number, since it is larger than the sum of its proper divisors (7363).

12090497 is an equidigital number, since it uses as much as digits as its factorization.

12090497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7362.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 12090497 is about 3477.1391976739. The cubic root of 12090497 is about 229.5169256064.

The spelling of 12090497 in words is "twelve million, ninety thousand, four hundred ninety-seven".