1982135 has 4 divisors (see below), whose sum is σ = 2378568. Its totient is φ = 1585704.

The previous prime is 1982129. The next prime is 1982153. The reversal of 1982135 is 5312891.

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

It is a cyclic number.

It is not a de Polignac number, because 1982135 - 2⁸ = 1981879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1982098 and 1982107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198209 + ... + 198218.

It is an arithmetic number, because the mean of its divisors is an integer number (594642).

2^1982135 is an apocalyptic number.

1982135 is a deficient number, since it is larger than the sum of its proper divisors (396433).

1982135 is an equidigital number, since it uses as much as digits as its factorization.

1982135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396432.

The product of its digits is 2160, while the sum is 29.

The square root of 1982135 is about 1407.8831627660. The cubic root of 1982135 is about 125.6158409368.

The spelling of 1982135 in words is "one million, nine hundred eighty-two thousand, one hundred thirty-five".