12423751 has 2 divisors, whose sum is σ = 12423752. Its totient is φ = 12423750.

The previous prime is 12423731. The next prime is 12423767. The reversal of 12423751 is 15732421.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (15732421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12423751 - 2⁷ = 12423623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12423731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211875 + 6211876.

It is an arithmetic number, because the mean of its divisors is an integer number (6211876).

Almost surely, 2^12423751 is an apocalyptic number.

12423751 is a deficient number, since it is larger than the sum of its proper divisors (1).

12423751 is an equidigital number, since it uses as much as digits as its factorization.

12423751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 12423751 is about 3524.7341743740. The cubic root of 12423751 is about 231.6065902454.

The spelling of 12423751 in words is "twelve million, four hundred twenty-three thousand, seven hundred fifty-one".