1999082 has 4 divisors (see below), whose sum is σ = 2998626. Its totient is φ = 999540.

The previous prime is 1999069. The next prime is 1999099. The reversal of 1999082 is 2809991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2809991 = 149 ⋅18859.

It can be written as a sum of positive squares in only one way, i.e., 1661521 + 337561 = 1289^2 + 581^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499769 + ... + 499772.

2^1999082 is an apocalyptic number.

1999082 is a deficient number, since it is larger than the sum of its proper divisors (999544).

1999082 is an equidigital number, since it uses as much as digits as its factorization.

1999082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999543.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1999082 is about 1413.8889631085. Note that the first 3 decimals coincide. The cubic root of 1999082 is about 125.9728252473.

The spelling of 1999082 in words is "one million, nine hundred ninety-nine thousand, eighty-two".