12401047 has 2 divisors, whose sum is σ = 12401048. Its totient is φ = 12401046.

The previous prime is 12401027. The next prime is 12401063. The reversal of 12401047 is 74010421.

It is a strong prime.

It is an emirp because it is prime and its reverse (74010421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12401047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12401027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6200523 + 6200524.

It is an arithmetic number, because the mean of its divisors is an integer number (6200524).

Almost surely, 2^12401047 is an apocalyptic number.

12401047 is a deficient number, since it is larger than the sum of its proper divisors (1).

12401047 is an equidigital number, since it uses as much as digits as its factorization.

12401047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 12401047 is about 3521.5120332039. The cubic root of 12401047 is about 231.4654197175.

Adding to 12401047 its reverse (74010421), we get a palindrome (86411468).

The spelling of 12401047 in words is "twelve million, four hundred one thousand, forty-seven".