163005143 has 12 divisors (see below), whose sum is σ = 192943920. Its totient is φ = 134895936.

The previous prime is 163005113. The next prime is 163005149. The reversal of 163005143 is 341500361.

It is a happy number.

It is not a de Polignac number, because 163005143 - 2²⁰ = 161956567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163005149) 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, 7958 + ... + 19731.

It is an arithmetic number, because the mean of its divisors is an integer number (16078660).

Almost surely, 2^163005143 is an apocalyptic number.

163005143 is a deficient number, since it is larger than the sum of its proper divisors (29938777).

163005143 is an equidigital number, since it uses as much as digits as its factorization.

163005143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27754 (or 27725 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 163005143 is about 12767.3467486397. The cubic root of 163005143 is about 546.2613022463.

The spelling of 163005143 in words is "one hundred sixty-three million, five thousand, one hundred forty-three".