12051799 has 4 divisors (see below), whose sum is σ = 12073264. Its totient is φ = 12030336.

The previous prime is 12051779. The next prime is 12051811. The reversal of 12051799 is 99715021.

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 12051799 - 2¹³ = 12043607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12051769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9867 + ... + 11020.

It is an arithmetic number, because the mean of its divisors is an integer number (3018316).

Almost surely, 2^12051799 is an apocalyptic number.

12051799 is a deficient number, since it is larger than the sum of its proper divisors (21465).

12051799 is an equidigital number, since it uses as much as digits as its factorization.

12051799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21464.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 12051799 is about 3471.5701058743. The cubic root of 12051799 is about 229.2717926202.

The spelling of 12051799 in words is "twelve million, fifty-one thousand, seven hundred ninety-nine".