12401791 has 2 divisors, whose sum is σ = 12401792. Its totient is φ = 12401790.

The previous prime is 12401743. The next prime is 12401819. The reversal of 12401791 is 19710421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12401791 - 2²¹ = 10304639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12401731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6200895 + 6200896.

It is an arithmetic number, because the mean of its divisors is an integer number (6200896).

Almost surely, 2^12401791 is an apocalyptic number.

12401791 is a deficient number, since it is larger than the sum of its proper divisors (1).

12401791 is an equidigital number, since it uses as much as digits as its factorization.

12401791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 12401791 is about 3521.6176680611. The cubic root of 12401791 is about 231.4700485425.

The spelling of 12401791 in words is "twelve million, four hundred one thousand, seven hundred ninety-one".