163830869 has 2 divisors, whose sum is σ = 163830870. Its totient is φ = 163830868.

The previous prime is 163830859. The next prime is 163830871. The reversal of 163830869 is 968038361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157803844 + 6027025 = 12562^2 + 2455^2 .

It is a cyclic number.

It is not a de Polignac number, because 163830869 - 2¹⁶ = 163765333 is a prime.

It is a super-2 number, since 2×163830869² = 53681107274590322, which contains 22 as substring.

Together with 163830871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163830809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81915434 + 81915435.

It is an arithmetic number, because the mean of its divisors is an integer number (81915435).

Almost surely, 2^163830869 is an apocalyptic number.

It is an amenable number.

163830869 is a deficient number, since it is larger than the sum of its proper divisors (1).

163830869 is an equidigital number, since it uses as much as digits as its factorization.

163830869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 163830869 is about 12799.6433153428. The cubic root of 163830869 is about 547.1821375196.

The spelling of 163830869 in words is "one hundred sixty-three million, eight hundred thirty thousand, eight hundred sixty-nine".