12164857 has 2 divisors, whose sum is σ = 12164858. Its totient is φ = 12164856.

The previous prime is 12164851. The next prime is 12164881. The reversal of 12164857 is 75846121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7750656 + 4414201 = 2784^2 + 2101^2 .

It is a cyclic number.

It is not a de Polignac number, because 12164857 - 2¹¹ = 12162809 is a prime.

It is not a weakly prime, because it can be changed into another prime (12164851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6082428 + 6082429.

It is an arithmetic number, because the mean of its divisors is an integer number (6082429).

Almost surely, 2^12164857 is an apocalyptic number.

It is an amenable number.

12164857 is a deficient number, since it is larger than the sum of its proper divisors (1).

12164857 is an equidigital number, since it uses as much as digits as its factorization.

12164857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 12164857 is about 3487.8155054418. The cubic root of 12164857 is about 229.9864957415.

The spelling of 12164857 in words is "twelve million, one hundred sixty-four thousand, eight hundred fifty-seven".