12099959 has 2 divisors, whose sum is σ = 12099960. Its totient is φ = 12099958.

The previous prime is 12099949. The next prime is 12099991. The reversal of 12099959 is 95999021.

It is a weak prime.

It is an emirp because it is prime and its reverse (95999021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12099959 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12099929) 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, 6049979 + 6049980.

It is an arithmetic number, because the mean of its divisors is an integer number (6049980).

Almost surely, 2^12099959 is an apocalyptic number.

12099959 is a deficient number, since it is larger than the sum of its proper divisors (1).

12099959 is an equidigital number, since it uses as much as digits as its factorization.

12099959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65610, while the sum is 44.

The square root of 12099959 is about 3478.4995328446. The cubic root of 12099959 is about 229.5767831644.

The spelling of 12099959 in words is "twelve million, ninety-nine thousand, nine hundred fifty-nine".