12032291 has 2 divisors, whose sum is σ = 12032292. Its totient is φ = 12032290.

The previous prime is 12032287. The next prime is 12032297. The reversal of 12032291 is 19223021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12032291 - 2² = 12032287 is a prime.

It is not a weakly prime, because it can be changed into another prime (12032297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6016145 + 6016146.

It is an arithmetic number, because the mean of its divisors is an integer number (6016146).

Almost surely, 2^12032291 is an apocalyptic number.

12032291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12032291 is an equidigital number, since it uses as much as digits as its factorization.

12032291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12032291 is about 3468.7592882759. The cubic root of 12032291 is about 229.1480199631.

The spelling of 12032291 in words is "twelve million, thirty-two thousand, two hundred ninety-one".