2245817 has 6 divisors (see below), whose sum is σ = 2612538. Its totient is φ = 1924944.

The previous prime is 2245813. The next prime is 2245849. The reversal of 2245817 is 7185422.

It can be written as a sum of positive squares in only one way, i.e., 2019241 + 226576 = 1421^2 + 476^2 .

It is not a de Polignac number, because 2245817 - 2² = 2245813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2245817.

It is not an unprimeable number, because it can be changed into a prime (2245811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22868 + ... + 22965.

It is an arithmetic number, because the mean of its divisors is an integer number (435423).

2^2245817 is an apocalyptic number.

It is an amenable number.

2245817 is a deficient number, since it is larger than the sum of its proper divisors (366721).

2245817 is an equidigital number, since it uses as much as digits as its factorization.

2245817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45847 (or 45840 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 2245817 is about 1498.6050180084. The cubic root of 2245817 is about 130.9558151785.

The spelling of 2245817 in words is "two million, two hundred forty-five thousand, eight hundred seventeen".