12943901 has 2 divisors, whose sum is σ = 12943902. Its totient is φ = 12943900.

The previous prime is 12943873. The next prime is 12943927. The reversal of 12943901 is 10934921.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12432676 + 511225 = 3526^2 + 715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12943901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12943961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6471950 + 6471951.

It is an arithmetic number, because the mean of its divisors is an integer number (6471951).

Almost surely, 2^12943901 is an apocalyptic number.

It is an amenable number.

12943901 is a deficient number, since it is larger than the sum of its proper divisors (1).

12943901 is an equidigital number, since it uses as much as digits as its factorization.

12943901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 12943901 is about 3597.7633329612. The cubic root of 12943901 is about 234.7947566660.

The spelling of 12943901 in words is "twelve million, nine hundred forty-three thousand, nine hundred one".