163830861 has 12 divisors (see below), whose sum is σ = 241680192. Its totient is φ = 106896456.

The previous prime is 163830859. The next prime is 163830869. The reversal of 163830861 is 168038361.

It is not a de Polignac number, because 163830861 - 2¹ = 163830859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163830869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193231 + ... + 194076.

It is an arithmetic number, because the mean of its divisors is an integer number (20140016).

Almost surely, 2^163830861 is an apocalyptic number.

It is an amenable number.

163830861 is a deficient number, since it is larger than the sum of its proper divisors (77849331).

163830861 is a wasteful number, since it uses less digits than its factorization.

163830861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387360 (or 387357 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 163830861 is about 12799.6430028341. The cubic root of 163830861 is about 547.1821286131.

The spelling of 163830861 in words is "one hundred sixty-three million, eight hundred thirty thousand, eight hundred sixty-one".