2245645263 has 8 divisors (see below), whose sum is σ = 3001892400. Its totient is φ = 1493247488.

The previous prime is 2245645253. The next prime is 2245645267. The reversal of 2245645263 is 3625465422.

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

It is a cyclic number.

It is not a de Polignac number, because 2245645263 - 2²⁵ = 2212090831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245645267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960978 + ... + 963311.

It is an arithmetic number, because the mean of its divisors is an integer number (375236550).

Almost surely, 2^2245645263 is an apocalyptic number.

2245645263 is a deficient number, since it is larger than the sum of its proper divisors (756247137).

2245645263 is a wasteful number, since it uses less digits than its factorization.

2245645263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924681.

The product of its digits is 345600, while the sum is 39.

The square root of 2245645263 is about 47388.2397119792. The cubic root of 2245645263 is about 1309.5247704181.

The spelling of 2245645263 in words is "two billion, two hundred forty-five million, six hundred forty-five thousand, two hundred sixty-three".