12402913 has 2 divisors, whose sum is σ = 12402914. Its totient is φ = 12402912.

The previous prime is 12402893. The next prime is 12402917. The reversal of 12402913 is 31920421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12194064 + 208849 = 3492^2 + 457^2 .

It is a cyclic number.

It is not a de Polignac number, because 12402913 - 2¹³ = 12394721 is a prime.

It is not a weakly prime, because it can be changed into another prime (12402917) 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, 6201456 + 6201457.

It is an arithmetic number, because the mean of its divisors is an integer number (6201457).

Almost surely, 2^12402913 is an apocalyptic number.

It is an amenable number.

12402913 is a deficient number, since it is larger than the sum of its proper divisors (1).

12402913 is an equidigital number, since it uses as much as digits as its factorization.

12402913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 12402913 is about 3521.7769662487. The cubic root of 12402913 is about 231.4770287591.

The spelling of 12402913 in words is "twelve million, four hundred two thousand, nine hundred thirteen".