12453252209 has 2 divisors, whose sum is σ = 12453252210. Its totient is φ = 12453252208.

The previous prime is 12453252193. The next prime is 12453252221. The reversal of 12453252209 is 90225235421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11952611584 + 500640625 = 109328^2 + 22375^2 .

It is a cyclic number.

It is not a de Polignac number, because 12453252209 - 2⁴ = 12453252193 is a prime.

It is not a weakly prime, because it can be changed into another prime (12453255209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6226626104 + 6226626105.

It is an arithmetic number, because the mean of its divisors is an integer number (6226626105).

Almost surely, 2^12453252209 is an apocalyptic number.

It is an amenable number.

12453252209 is a deficient number, since it is larger than the sum of its proper divisors (1).

12453252209 is an equidigital number, since it uses as much as digits as its factorization.

12453252209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 12453252209 in words is "twelve billion, four hundred fifty-three million, two hundred fifty-two thousand, two hundred nine".