12845969 has 2 divisors, whose sum is σ = 12845970. Its totient is φ = 12845968.

The previous prime is 12845951. The next prime is 12846007. The reversal of 12845969 is 96954821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11662225 + 1183744 = 3415^2 + 1088^2 .

It is a cyclic number.

It is not a de Polignac number, because 12845969 - 2⁸ = 12845713 is a prime.

It is a super-2 number, since 2×12845969² = 330037839097922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12845909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6422984 + 6422985.

It is an arithmetic number, because the mean of its divisors is an integer number (6422985).

Almost surely, 2^12845969 is an apocalyptic number.

It is an amenable number.

12845969 is a deficient number, since it is larger than the sum of its proper divisors (1).

12845969 is an equidigital number, since it uses as much as digits as its factorization.

12845969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 44.

The square root of 12845969 is about 3584.1273693885. The cubic root of 12845969 is about 234.2011140221.

The spelling of 12845969 in words is "twelve million, eight hundred forty-five thousand, nine hundred sixty-nine".