12097599 has 4 divisors (see below), whose sum is σ = 16130136. Its totient is φ = 8065064.

The previous prime is 12097571. The next prime is 12097637. The reversal of 12097599 is 99579021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12097599 - 2¹⁶ = 12032063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12097599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12097559) 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 in 3 ways as a sum of consecutive naturals, for example, 2016264 + ... + 2016269.

It is an arithmetic number, because the mean of its divisors is an integer number (4032534).

Almost surely, 2^12097599 is an apocalyptic number.

12097599 is a deficient number, since it is larger than the sum of its proper divisors (4032537).

12097599 is an equidigital number, since it uses as much as digits as its factorization.

12097599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032536.

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 12097599 is about 3478.1602895784. The cubic root of 12097599 is about 229.5618564902.

The spelling of 12097599 in words is "twelve million, ninety-seven thousand, five hundred ninety-nine".