12159701 has 2 divisors, whose sum is σ = 12159702. Its totient is φ = 12159700.

The previous prime is 12159659. The next prime is 12159703. The reversal of 12159701 is 10795121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11566801 + 592900 = 3401^2 + 770^2 .

It is a cyclic number.

It is not a de Polignac number, because 12159701 - 2¹⁴ = 12143317 is a prime.

It is a Sophie Germain prime.

Together with 12159703, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12159703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6079850 + 6079851.

It is an arithmetic number, because the mean of its divisors is an integer number (6079851).

Almost surely, 2^12159701 is an apocalyptic number.

It is an amenable number.

12159701 is a deficient number, since it is larger than the sum of its proper divisors (1).

12159701 is an equidigital number, since it uses as much as digits as its factorization.

12159701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 12159701 is about 3487.0762825037. The cubic root of 12159701 is about 229.9539983614.

The spelling of 12159701 in words is "twelve million, one hundred fifty-nine thousand, seven hundred one".