163808212 has 12 divisors (see below), whose sum is σ = 286814836. Its totient is φ = 81861120.

The previous prime is 163808201. The next prime is 163808251. The reversal of 163808212 is 212808361.

It can be written as a sum of positive squares in 2 ways, for example, as 45346756 + 118461456 = 6734^2 + 10884^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 1239 + ... + 18142.

Almost surely, 2^163808212 is an apocalyptic number.

It is an amenable number.

163808212 is a deficient number, since it is larger than the sum of its proper divisors (123006624).

163808212 is a wasteful number, since it uses less digits than its factorization.

163808212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21498 (or 21496 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 163808212 is about 12798.7582210150. The cubic root of 163808212 is about 547.1569121610.

The spelling of 163808212 in words is "one hundred sixty-three million, eight hundred eight thousand, two hundred twelve".