2245645361 has 4 divisors (see below), whose sum is σ = 2262787824. Its totient is φ = 2228502900.

The previous prime is 2245645349. The next prime is 2245645387. The reversal of 2245645361 is 1635465422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2245645361 - 2¹⁴ = 2245628977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2245645561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8571035 + ... + 8571296.

It is an arithmetic number, because the mean of its divisors is an integer number (565696956).

Almost surely, 2^2245645361 is an apocalyptic number.

It is an amenable number.

2245645361 is a deficient number, since it is larger than the sum of its proper divisors (17142463).

2245645361 is a wasteful number, since it uses less digits than its factorization.

2245645361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17142462.

The product of its digits is 172800, while the sum is 38.

The square root of 2245645361 is about 47388.2407459910. The cubic root of 2245645361 is about 1309.5247894674.

The spelling of 2245645361 in words is "two billion, two hundred forty-five million, six hundred forty-five thousand, three hundred sixty-one".