163251227 has 2 divisors, whose sum is σ = 163251228. Its totient is φ = 163251226.

The previous prime is 163251203. The next prime is 163251229. The reversal of 163251227 is 722152361.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163251227 - 2¹⁸ = 162989083 is a prime.

Together with 163251229, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163251227.

It is not a weakly prime, because it can be changed into another prime (163251229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81625613 + 81625614.

It is an arithmetic number, because the mean of its divisors is an integer number (81625614).

Almost surely, 2^163251227 is an apocalyptic number.

163251227 is a deficient number, since it is larger than the sum of its proper divisors (1).

163251227 is an equidigital number, since it uses as much as digits as its factorization.

163251227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 163251227 is about 12776.9803553109. The cubic root of 163251227 is about 546.5360554926.

The spelling of 163251227 in words is "one hundred sixty-three million, two hundred fifty-one thousand, two hundred twenty-seven".