2192045 has 4 divisors (see below), whose sum is σ = 2630460. Its totient is φ = 1753632.

The previous prime is 2192017. The next prime is 2192051. The reversal of 2192045 is 5402912.

2192045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1605289 + 586756 = 1267^2 + 766^2 .

It is a cyclic number.

It is not a de Polignac number, because 2192045 - 2¹⁴ = 2175661 is a prime.

It is a super-2 number, since 2×2192045² = 9610122564050, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2192045.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 219200 + ... + 219209.

It is an arithmetic number, because the mean of its divisors is an integer number (657615).

2^2192045 is an apocalyptic number.

It is an amenable number.

2192045 is a deficient number, since it is larger than the sum of its proper divisors (438415).

2192045 is an equidigital number, since it uses as much as digits as its factorization.

2192045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438414.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2192045 is about 1480.5556389410. Note that the first 3 decimals coincide. The cubic root of 2192045 is about 129.9021946793.

Adding to 2192045 its reverse (5402912), we get a palindrome (7594957).

The spelling of 2192045 in words is "two million, one hundred ninety-two thousand, forty-five".