12142499 has 2 divisors, whose sum is σ = 12142500. Its totient is φ = 12142498.

The previous prime is 12142451. The next prime is 12142511. The reversal of 12142499 is 99424121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12142499 - 2²⁰ = 11093923 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12142439) 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, 6071249 + 6071250.

It is an arithmetic number, because the mean of its divisors is an integer number (6071250).

Almost surely, 2^12142499 is an apocalyptic number.

12142499 is a deficient number, since it is larger than the sum of its proper divisors (1).

12142499 is an equidigital number, since it uses as much as digits as its factorization.

12142499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The square root of 12142499 is about 3484.6088733171. The cubic root of 12142499 is about 229.8455106205.

The spelling of 12142499 in words is "twelve million, one hundred forty-two thousand, four hundred ninety-nine".