12262889 has 2 divisors, whose sum is σ = 12262890. Its totient is φ = 12262888.

The previous prime is 12262883. The next prime is 12262919. The reversal of 12262889 is 98826221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8526400 + 3736489 = 2920^2 + 1933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12262889 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (12262883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6131444 + 6131445.

It is an arithmetic number, because the mean of its divisors is an integer number (6131445).

Almost surely, 2^12262889 is an apocalyptic number.

It is an amenable number.

12262889 is a deficient number, since it is larger than the sum of its proper divisors (1).

12262889 is an equidigital number, since it uses as much as digits as its factorization.

12262889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 38.

The square root of 12262889 is about 3501.8408016356. The cubic root of 12262889 is about 230.6026351258.

The spelling of 12262889 in words is "twelve million, two hundred sixty-two thousand, eight hundred eighty-nine".