12259649 has 2 divisors, whose sum is σ = 12259650. Its totient is φ = 12259648.

The previous prime is 12259633. The next prime is 12259657. The reversal of 12259649 is 94695221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11937025 + 322624 = 3455^2 + 568^2 .

It is a cyclic number.

It is not a de Polignac number, because 12259649 - 2⁴ = 12259633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12259609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6129824 + 6129825.

It is an arithmetic number, because the mean of its divisors is an integer number (6129825).

Almost surely, 2^12259649 is an apocalyptic number.

It is an amenable number.

12259649 is a deficient number, since it is larger than the sum of its proper divisors (1).

12259649 is an equidigital number, since it uses as much as digits as its factorization.

12259649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 38.

The square root of 12259649 is about 3501.3781572404. The cubic root of 12259649 is about 230.5823240243.

The spelling of 12259649 in words is "twelve million, two hundred fifty-nine thousand, six hundred forty-nine".