2201851345 has 16 divisors (see below), whose sum is σ = 2694442320. Its totient is φ = 1726726144.

The previous prime is 2201851319. The next prime is 2201851381. The reversal of 2201851345 is 5431581022.

2201851345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4210704 + 2197640641 = 2052^2 + 46879^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201851345 - 2¹¹ = 2201849297 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, 370437 + ... + 376333.

It is an arithmetic number, because the mean of its divisors is an integer number (168402645).

Almost surely, 2^2201851345 is an apocalyptic number.

It is an amenable number.

2201851345 is a deficient number, since it is larger than the sum of its proper divisors (492590975).

2201851345 is a wasteful number, since it uses less digits than its factorization.

2201851345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7364.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 2201851345 is about 46923.8888520549. Note that the first 4 decimals coincide. The cubic root of 2201851345 is about 1300.9561693319.

The spelling of 2201851345 in words is "two billion, two hundred one million, eight hundred fifty-one thousand, three hundred forty-five".