163226144 has 12 divisors (see below), whose sum is σ = 321351534. Its totient is φ = 81613056.

The previous prime is 163226143. The next prime is 163226177. The reversal of 163226144 is 441622361.

It can be written as a sum of positive squares in only one way, i.e., 134281744 + 28944400 = 11588^2 + 5380^2 .

It is not an unprimeable number, because it can be changed into a prime (163226143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550377 + ... + 2550440.

Almost surely, 2^163226144 is an apocalyptic number.

It is an amenable number.

163226144 is a deficient number, since it is larger than the sum of its proper divisors (158125390).

163226144 is an equidigital number, since it uses as much as digits as its factorization.

163226144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100827 (or 5100819 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 163226144 is about 12775.9987476518. The cubic root of 163226144 is about 546.5080629188.

The spelling of 163226144 in words is "one hundred sixty-three million, two hundred twenty-six thousand, one hundred forty-four".