163000399 has 2 divisors, whose sum is σ = 163000400. Its totient is φ = 163000398.

The previous prime is 163000393. The next prime is 163000433. The reversal of 163000399 is 993000361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163000399 - 2⁵ = 163000367 is a prime.

It is equal to p_9133168 and since 163000399 and 9133168 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163000399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163000393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81500199 + 81500200.

It is an arithmetic number, because the mean of its divisors is an integer number (81500200).

Almost surely, 2^163000399 is an apocalyptic number.

163000399 is a deficient number, since it is larger than the sum of its proper divisors (1).

163000399 is an equidigital number, since it uses as much as digits as its factorization.

163000399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 163000399 is about 12767.1609608401. The cubic root of 163000399 is about 546.2560028455.

The spelling of 163000399 in words is "one hundred sixty-three million, three hundred ninety-nine", and thus it is an aban number.