12091297 has 2 divisors, whose sum is σ = 12091298. Its totient is φ = 12091296.

The previous prime is 12091291. The next prime is 12091319. The reversal of 12091297 is 79219021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10653696 + 1437601 = 3264^2 + 1199^2 .

It is a cyclic number.

It is not a de Polignac number, because 12091297 - 2¹¹ = 12089249 is a prime.

It is not a weakly prime, because it can be changed into another prime (12091291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6045648 + 6045649.

It is an arithmetic number, because the mean of its divisors is an integer number (6045649).

Almost surely, 2^12091297 is an apocalyptic number.

It is an amenable number.

12091297 is a deficient number, since it is larger than the sum of its proper divisors (1).

12091297 is an equidigital number, since it uses as much as digits as its factorization.

12091297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 12091297 is about 3477.2542328682. The cubic root of 12091297 is about 229.5219876947.

The spelling of 12091297 in words is "twelve million, ninety-one thousand, two hundred ninety-seven".