1165064120 has 32 divisors (see below), whose sum is σ = 2859703920. Its totient is φ = 423659520.

The previous prime is 1165064083. The next prime is 1165064137. The reversal of 1165064120 is 214605611.

It is a super-2 number, since 2×1165064120² = 2714748807422748800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1165064120.

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, 1323497 + ... + 1324376.

Almost surely, 2^1165064120 is an apocalyptic number.

1165064120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165064120 is an abundant number, since it is smaller than the sum of its proper divisors (1694639800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1165064120 is a wasteful number, since it uses less digits than its factorization.

1165064120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647895 (or 2647891 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1165064120 is about 34133.0356106807. The cubic root of 1165064120 is about 1052.2443663121.

Adding to 1165064120 its reverse (214605611), we get a palindrome (1379669731).

The spelling of 1165064120 in words is "one billion, one hundred sixty-five million, sixty-four thousand, one hundred twenty".