12045399 has 8 divisors (see below), whose sum is σ = 16758912. Its totient is φ = 7681080.

The previous prime is 12045347. The next prime is 12045409. The reversal of 12045399 is 99354021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12045399 - 2⁹ = 12044887 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87217 + ... + 87354.

It is an arithmetic number, because the mean of its divisors is an integer number (2094864).

Almost surely, 2^12045399 is an apocalyptic number.

12045399 is a deficient number, since it is larger than the sum of its proper divisors (4713513).

12045399 is a wasteful number, since it uses less digits than its factorization.

12045399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174597.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 12045399 is about 3470.6482103492. The cubic root of 12045399 is about 229.2312011896.

The spelling of 12045399 in words is "twelve million, forty-five thousand, three hundred ninety-nine".