163531268 has 12 divisors (see below), whose sum is σ = 293914572. Its totient is φ = 79555680.

The previous prime is 163531259. The next prime is 163531289. The reversal of 163531268 is 862135361.

163531268 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 138109504 + 25421764 = 11752^2 + 5042^2 .

It is a super-2 number, since 2×163531268² = 53484951227375648, which contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 552323 + ... + 552618.

It is an arithmetic number, because the mean of its divisors is an integer number (24492881).

Almost surely, 2^163531268 is an apocalyptic number.

It is an amenable number.

163531268 is a deficient number, since it is larger than the sum of its proper divisors (130383304).

163531268 is a wasteful number, since it uses less digits than its factorization.

163531268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104982 (or 1104980 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 163531268 is about 12787.9344696476. The cubic root of 163531268 is about 546.8483861138.

The spelling of 163531268 in words is "one hundred sixty-three million, five hundred thirty-one thousand, two hundred sixty-eight".