2245305213 has 6 divisors (see below), whose sum is σ = 3243218654. Its totient is φ = 1496870136.

The previous prime is 2245305191. The next prime is 2245305217. The reversal of 2245305213 is 3125035422.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1697604804 + 547700409 = 41202^2 + 23403^2 .

It is not a de Polignac number, because 2245305213 - 2¹⁶ = 2245239677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245305217) 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 5 ways as a sum of consecutive naturals, for example, 124739170 + ... + 124739187.

Almost surely, 2^2245305213 is an apocalyptic number.

It is an amenable number.

2245305213 is a deficient number, since it is larger than the sum of its proper divisors (997913441).

2245305213 is a wasteful number, since it uses less digits than its factorization.

2245305213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249478363 (or 249478360 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2245305213 is about 47384.6516606380. The cubic root of 2245305213 is about 1309.4586682033.

The spelling of 2245305213 in words is "two billion, two hundred forty-five million, three hundred five thousand, two hundred thirteen".