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12669197 is a prime number
BaseRepresentation
bin110000010101…
…000100001101
3212211122212112
4300111010031
511220403242
61131313405
7212454302
oct60250415
925748775
1012669197
117173612
1242ab865
132817788
14197b0a9
1511a3c82
hexc1510d

12669197 has 2 divisors, whose sum is σ = 12669198. Its totient is φ = 12669196.

The previous prime is 12669193. The next prime is 12669211. The reversal of 12669197 is 79196621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7678441 + 4990756 = 2771^2 + 2234^2 .

It is a cyclic number.

It is not a de Polignac number, because 12669197 - 22 = 12669193 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12669191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6334598 + 6334599.

It is an arithmetic number, because the mean of its divisors is an integer number (6334599).

Almost surely, 212669197 is an apocalyptic number.

It is an amenable number.

12669197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12669197 is an equidigital number, since it uses as much as digits as its factorization.

12669197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 41.

The square root of 12669197 is about 3559.3815474040. The cubic root of 12669197 is about 233.1218762265.

The spelling of 12669197 in words is "twelve million, six hundred sixty-nine thousand, one hundred ninety-seven".