12997801 has 2 divisors, whose sum is σ = 12997802. Its totient is φ = 12997800.

The previous prime is 12997781. The next prime is 12997847. The reversal of 12997801 is 10879921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8856576 + 4141225 = 2976^2 + 2035^2 .

It is a cyclic number.

It is not a de Polignac number, because 12997801 - 2⁹ = 12997289 is a prime.

It is not a weakly prime, because it can be changed into another prime (12907801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6498900 + 6498901.

It is an arithmetic number, because the mean of its divisors is an integer number (6498901).

Almost surely, 2^12997801 is an apocalyptic number.

It is an amenable number.

12997801 is a deficient number, since it is larger than the sum of its proper divisors (1).

12997801 is an equidigital number, since it uses as much as digits as its factorization.

12997801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 12997801 is about 3605.2463161343. The cubic root of 12997801 is about 235.1202101143.

The spelling of 12997801 in words is "twelve million, nine hundred ninety-seven thousand, eight hundred one".