12290669 has 2 divisors, whose sum is σ = 12290670. Its totient is φ = 12290668.

The previous prime is 12290657. The next prime is 12290687. The reversal of 12290669 is 96609221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10432900 + 1857769 = 3230^2 + 1363^2 .

It is an emirp because it is prime and its reverse (96609221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12290669 - 2⁴ = 12290653 is a prime.

It is a super-2 number, since 2×12290669² = 302121088935122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12290639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6145334 + 6145335.

It is an arithmetic number, because the mean of its divisors is an integer number (6145335).

Almost surely, 2^12290669 is an apocalyptic number.

It is an amenable number.

12290669 is a deficient number, since it is larger than the sum of its proper divisors (1).

12290669 is an equidigital number, since it uses as much as digits as its factorization.

12290669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 12290669 is about 3505.8050430679. The cubic root of 12290669 is about 230.7766373492.

The spelling of 12290669 in words is "twelve million, two hundred ninety thousand, six hundred sixty-nine".