2245945 has 16 divisors (see below), whose sum is σ = 2938320. Its totient is φ = 1638144.

The previous prime is 2245931. The next prime is 2245951. The reversal of 2245945 is 5495422.

It can be written as a sum of positive squares in 8 ways, for example, as 404496 + 1841449 = 636^2 + 1357^2 .

It is a cyclic number.

It is not a de Polignac number, because 2245945 - 2²¹ = 148793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6927 + ... + 7243.

It is an arithmetic number, because the mean of its divisors is an integer number (183645).

2^2245945 is an apocalyptic number.

It is an amenable number.

2245945 is a deficient number, since it is larger than the sum of its proper divisors (692375).

2245945 is a wasteful number, since it uses less digits than its factorization.

2245945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444.

The product of its digits is 14400, while the sum is 31.

The square root of 2245945 is about 1498.6477237830. The cubic root of 2245945 is about 130.9583030668.

The spelling of 2245945 in words is "two million, two hundred forty-five thousand, nine hundred forty-five".