1652982209 has 4 divisors (see below), whose sum is σ = 1680080340. Its totient is φ = 1625884080.

The previous prime is 1652982203. The next prime is 1652982211. The reversal of 1652982209 is 9022892561.

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

It can be written as a sum of positive squares in 2 ways, for example, as 591851584 + 1061130625 = 24328^2 + 32575^2 .

It is a cyclic number.

It is not a de Polignac number, because 1652982209 - 2¹² = 1652978113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1652982209.

It is not an unprimeable number, because it can be changed into a prime (1652982203) 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 in 3 ways as a sum of consecutive naturals, for example, 13548974 + ... + 13549095.

It is an arithmetic number, because the mean of its divisors is an integer number (420020085).

Almost surely, 2^1652982209 is an apocalyptic number.

It is an amenable number.

1652982209 is a deficient number, since it is larger than the sum of its proper divisors (27098131).

1652982209 is an equidigital number, since it uses as much as digits as its factorization.

1652982209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27098130.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1652982209 is about 40656.8839066646. The cubic root of 1652982209 is about 1182.3772359804.

The spelling of 1652982209 in words is "one billion, six hundred fifty-two million, nine hundred eighty-two thousand, two hundred nine".