2119605 has 8 divisors (see below), whose sum is σ = 3391392. Its totient is φ = 1130448.

The previous prime is 2119603. The next prime is 2119609. The reversal of 2119605 is 5069112.

2119605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2119605 - 2¹ = 2119603 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119603) 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 7 ways as a sum of consecutive naturals, for example, 70639 + ... + 70668.

It is an arithmetic number, because the mean of its divisors is an integer number (423924).

2^2119605 is an apocalyptic number.

It is an amenable number.

2119605 is a deficient number, since it is larger than the sum of its proper divisors (1271787).

2119605 is a wasteful number, since it uses less digits than its factorization.

2119605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141315.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 2119605 is about 1455.8863279803. The cubic root of 2119605 is about 128.4551868243.

The spelling of 2119605 in words is "two million, one hundred nineteen thousand, six hundred five".