1982163 has 12 divisors (see below), whose sum is σ = 2765000. Its totient is φ = 1262976.

The previous prime is 1982159. The next prime is 1982173. The reversal of 1982163 is 3612891.

It is not a de Polignac number, because 1982163 - 2² = 1982159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1982163.

It is not an unprimeable number, because it can be changed into a prime (1982153) 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, 963 + ... + 2211.

2^1982163 is an apocalyptic number.

1982163 is a deficient number, since it is larger than the sum of its proper divisors (782837).

1982163 is a wasteful number, since it uses less digits than its factorization.

1982163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1275 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 1982163 is about 1407.8931067379. The cubic root of 1982163 is about 125.6164324248.

It can be divided in two parts, 1982 and 163, that added together give a triangular number (2145 = T₆₅).

The spelling of 1982163 in words is "one million, nine hundred eighty-two thousand, one hundred sixty-three".