2245385609 has 4 divisors (see below), whose sum is σ = 2245519380. Its totient is φ = 2245251840.

The previous prime is 2245385587. The next prime is 2245385617. The reversal of 2245385609 is 9065835422.

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 1995587584 + 249798025 = 44672^2 + 15805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2245385609 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 2245385609.

It is not an unprimeable number, because it can be changed into a prime (2245385669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37364 + ... + 76725.

It is an arithmetic number, because the mean of its divisors is an integer number (561379845).

Almost surely, 2^2245385609 is an apocalyptic number.

It is an amenable number.

2245385609 is a deficient number, since it is larger than the sum of its proper divisors (133771).

2245385609 is a wasteful number, since it uses less digits than its factorization.

2245385609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133770.

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 2245385609 is about 47385.4999868103. The cubic root of 2245385609 is about 1309.4742969594.

The spelling of 2245385609 in words is "two billion, two hundred forty-five million, three hundred eighty-five thousand, six hundred nine".