2200045 has 4 divisors (see below), whose sum is σ = 2640060. Its totient is φ = 1760032.

The previous prime is 2200043. The next prime is 2200049. The reversal of 2200045 is 5400022.

It is a happy number.

2200045 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 879844 + 1320201 = 938^2 + 1149^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200045 - 2¹ = 2200043 is a prime.

2200045 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2199998 and 2200034.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200043) 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 3 ways as a sum of consecutive naturals, for example, 220000 + ... + 220009.

It is an arithmetic number, because the mean of its divisors is an integer number (660015).

2^2200045 is an apocalyptic number.

It is an amenable number.

2200045 is a deficient number, since it is larger than the sum of its proper divisors (440015).

2200045 is an equidigital number, since it uses as much as digits as its factorization.

2200045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440014.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 2200045 is about 1483.2548668385. The cubic root of 2200045 is about 130.0600314460.

Adding to 2200045 its reverse (5400022), we get a palindrome (7600067).

The spelling of 2200045 in words is "two million, two hundred thousand, forty-five".