12291413 has 2 divisors, whose sum is σ = 12291414. Its totient is φ = 12291412.

The previous prime is 12291403. The next prime is 12291427. The reversal of 12291413 is 31419221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8631844 + 3659569 = 2938^2 + 1913^2 .

It is a cyclic number.

It is not a de Polignac number, because 12291413 - 2¹⁶ = 12225877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12291403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6145706 + 6145707.

It is an arithmetic number, because the mean of its divisors is an integer number (6145707).

Almost surely, 2^12291413 is an apocalyptic number.

It is an amenable number.

12291413 is a deficient number, since it is larger than the sum of its proper divisors (1).

12291413 is an equidigital number, since it uses as much as digits as its factorization.

12291413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 23.

The square root of 12291413 is about 3505.9111511845. The cubic root of 12291413 is about 230.7812938452.

The spelling of 12291413 in words is "twelve million, two hundred ninety-one thousand, four hundred thirteen".