1299982 has 4 divisors (see below), whose sum is σ = 1949976. Its totient is φ = 649990.

The previous prime is 1299979. The next prime is 1299989. The reversal of 1299982 is 2899921.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324994 + ... + 324997.

It is an arithmetic number, because the mean of its divisors is an integer number (487494).

2^1299982 is an apocalyptic number.

1299982 is a deficient number, since it is larger than the sum of its proper divisors (649994).

1299982 is an equidigital number, since it uses as much as digits as its factorization.

1299982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649993.

The product of its digits is 23328, while the sum is 40.

The square root of 1299982 is about 1140.1675315496. The cubic root of 1299982 is about 109.1387845840.

The spelling of 1299982 in words is "one million, two hundred ninety-nine thousand, nine hundred eighty-two".