2112399 has 12 divisors (see below), whose sum is σ = 3164616. Its totient is φ = 1408104.

The previous prime is 2112353. The next prime is 2112413. The reversal of 2112399 is 9932112.

2112399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2112399 - 2¹¹ = 2110351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4104 + ... + 4589.

It is an arithmetic number, because the mean of its divisors is an integer number (263718).

2^2112399 is an apocalyptic number.

2112399 is a deficient number, since it is larger than the sum of its proper divisors (1052217).

2112399 is an frugal number, since it uses more digits than its factorization.

2112399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8708 (or 8696 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 2112399 is about 1453.4094399033. The cubic root of 2112399 is about 128.3094522757.

The spelling of 2112399 in words is "two million, one hundred twelve thousand, three hundred ninety-nine".