1982115 has 24 divisors (see below), whose sum is σ = 3639168. Its totient is φ = 994560.

The previous prime is 1982111. The next prime is 1982129. The reversal of 1982115 is 5112891.

It is not a de Polignac number, because 1982115 - 2² = 1982111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1982111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 531 + ... + 2060.

It is an arithmetic number, because the mean of its divisors is an integer number (151632).

2^1982115 is an apocalyptic number.

1982115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1982115 is a deficient number, since it is larger than the sum of its proper divisors (1657053).

1982115 is a wasteful number, since it uses less digits than its factorization.

1982115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619 (or 2616 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

The square root of 1982115 is about 1407.8760598860. The cubic root of 1982115 is about 125.6154184420.

The spelling of 1982115 in words is "one million, nine hundred eighty-two thousand, one hundred fifteen".