163089933 has 8 divisors (see below), whose sum is σ = 217536000. Its totient is φ = 108685248.

The previous prime is 163089929. The next prime is 163089967. The reversal of 163089933 is 339980361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163089933 - 2² = 163089929 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163089973) 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 in 7 ways as a sum of consecutive naturals, for example, 468 + ... + 18066.

It is an arithmetic number, because the mean of its divisors is an integer number (27192000).

Almost surely, 2^163089933 is an apocalyptic number.

It is an amenable number.

163089933 is a deficient number, since it is larger than the sum of its proper divisors (54446067).

163089933 is a wasteful number, since it uses less digits than its factorization.

163089933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20691.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 163089933 is about 12770.6668972298. Note that the first 3 decimals coincide. The cubic root of 163089933 is about 546.3560016452.

The spelling of 163089933 in words is "one hundred sixty-three million, eighty-nine thousand, nine hundred thirty-three".