1320850205 has 8 divisors (see below), whose sum is σ = 1591824312. Its totient is φ = 1052144128.

The previous prime is 1320850171. The next prime is 1320850243. The reversal of 1320850205 is 5020580231.

It can be written as a sum of positive squares in 4 ways, for example, as 322669369 + 998180836 = 17963^2 + 31594^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320850205 - 2¹⁶ = 1320784669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565724 + ... + 568053.

It is an arithmetic number, because the mean of its divisors is an integer number (198978039).

Almost surely, 2^1320850205 is an apocalyptic number.

It is an amenable number.

1320850205 is a deficient number, since it is larger than the sum of its proper divisors (270974107).

1320850205 is a wasteful number, since it uses less digits than its factorization.

1320850205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134015.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1320850205 is about 36343.5029269332. The cubic root of 1320850205 is about 1097.1967755941.

The spelling of 1320850205 in words is "one billion, three hundred twenty million, eight hundred fifty thousand, two hundred five".