1165050205 has 32 divisors (see below), whose sum is σ = 1670595840. Its totient is φ = 769950720.

The previous prime is 1165050199. The next prime is 1165050223. The reversal of 1165050205 is 5020505611.

It is not a de Polignac number, because 1165050205 - 2⁹ = 1165049693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1165050205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5632 + ... + 48598.

It is an arithmetic number, because the mean of its divisors is an integer number (52206120).

Almost surely, 2^1165050205 is an apocalyptic number.

It is an amenable number.

1165050205 is a deficient number, since it is larger than the sum of its proper divisors (505545635).

1165050205 is a wasteful number, since it uses less digits than its factorization.

1165050205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43029.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1165050205 is about 34132.8317752864. The cubic root of 1165050205 is about 1052.2401771182.

Adding to 1165050205 its reverse (5020505611), we get a palindrome (6185555816).

The spelling of 1165050205 in words is "one billion, one hundred sixty-five million, fifty thousand, two hundred five".