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BaseRepresentation
bin110001000111…
…100011000001
3220020011111202
4301013203001
511244012334
61135550545
7214305161
oct61074301
926204452
1012875969
1172a49a7
12438b455
13288a922
1419d25a1
1511e517e
hexc478c1

12875969 has 2 divisors, whose sum is σ = 12875970. Its totient is φ = 12875968.

The previous prime is 12875917. The next prime is 12875981. The reversal of 12875969 is 96957821.

12875969 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11992369 + 883600 = 3463^2 + 940^2 .

It is an emirp because it is prime and its reverse (96957821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12875969 - 216 = 12810433 is a prime.

It is a super-2 number, since 2×128759692 = 331581155377922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12875669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6437984 + 6437985.

It is an arithmetic number, because the mean of its divisors is an integer number (6437985).

Almost surely, 212875969 is an apocalyptic number.

It is an amenable number.

12875969 is a deficient number, since it is larger than the sum of its proper divisors (1).

12875969 is an equidigital number, since it uses as much as digits as its factorization.

12875969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 47.

The square root of 12875969 is about 3588.3100479195. The cubic root of 12875969 is about 234.3832871499.

The spelling of 12875969 in words is "twelve million, eight hundred seventy-five thousand, nine hundred sixty-nine".