2168245 has 8 divisors (see below), whose sum is σ = 2644920. Its totient is φ = 1705920.

The previous prime is 2168239. The next prime is 2168263. The reversal of 2168245 is 5428612.

It can be written as a sum of positive squares in 4 ways, for example, as 68644 + 2099601 = 262^2 + 1449^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-2168245 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3250 + ... + 3859.

It is an arithmetic number, because the mean of its divisors is an integer number (330615).

2^2168245 is an apocalyptic number.

It is an amenable number.

2168245 is a deficient number, since it is larger than the sum of its proper divisors (476675).

2168245 is an equidigital number, since it uses as much as digits as its factorization.

2168245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7175.

The product of its digits is 3840, while the sum is 28.

The square root of 2168245 is about 1472.4961799611. The cubic root of 2168245 is about 129.4303477001.

The spelling of 2168245 in words is "two million, one hundred sixty-eight thousand, two hundred forty-five".