64222245 has 24 divisors (see below), whose sum is σ = 112473816. Its totient is φ = 33896448.

The previous prime is 64222237. The next prime is 64222253. The reversal of 64222245 is 54222246.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64222237) and next prime (64222253).

It can be written as a sum of positive squares in 4 ways, for example, as 10771524 + 53450721 = 3282^2 + 7311^2 .

It is not a de Polignac number, because 64222245 - 2³ = 64222237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2992 + ... + 11721.

It is an arithmetic number, because the mean of its divisors is an integer number (4686409).

Almost surely, 2^64222245 is an apocalyptic number.

It is an amenable number.

64222245 is a deficient number, since it is larger than the sum of its proper divisors (48251571).

64222245 is a wasteful number, since it uses less digits than its factorization.

64222245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14821 (or 14818 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 64222245 is about 8013.8782745934. The cubic root of 64222245 is about 400.4624755016.

Subtracting from 64222245 its reverse (54222246), we obtain a palindrome (9999999).

The spelling of 64222245 in words is "sixty-four million, two hundred twenty-two thousand, two hundred forty-five".