163222245 has 24 divisors (see below), whose sum is σ = 288260856. Its totient is φ = 85408128.

The previous prime is 163222229. The next prime is 163222247. The reversal of 163222245 is 542222361.

It is a happy number.

163222245 is a `hidden beast` number, since 1 + 632 + 2 + 2 + 24 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 35034561 + 128187684 = 5919^2 + 11322^2 .

It is not a de Polignac number, because 163222245 - 2⁴ = 163222229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163222247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31834 + ... + 36603.

It is an arithmetic number, because the mean of its divisors is an integer number (12010869).

Almost surely, 2^163222245 is an apocalyptic number.

163222245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163222245 is a deficient number, since it is larger than the sum of its proper divisors (125038611).

163222245 is a wasteful number, since it uses less digits than its factorization.

163222245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68501 (or 68498 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 163222245 is about 12775.8461559303. The cubic root of 163222245 is about 546.5037113857.

The spelling of 163222245 in words is "one hundred sixty-three million, two hundred twenty-two thousand, two hundred forty-five".