163982911 has 2 divisors, whose sum is σ = 163982912. Its totient is φ = 163982910.

The previous prime is 163982869. The next prime is 163982971. The reversal of 163982911 is 119289361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163982911 - 2⁷ = 163982783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163982971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81991455 + 81991456.

It is an arithmetic number, because the mean of its divisors is an integer number (81991456).

Almost surely, 2^163982911 is an apocalyptic number.

163982911 is a deficient number, since it is larger than the sum of its proper divisors (1).

163982911 is an equidigital number, since it uses as much as digits as its factorization.

163982911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 40.

The square root of 163982911 is about 12805.5812441295. The cubic root of 163982911 is about 547.3513545995.

The spelling of 163982911 in words is "one hundred sixty-three million, nine hundred eighty-two thousand, nine hundred eleven".