1165225612 has 12 divisors (see below), whose sum is σ = 2054711736. Its totient is φ = 578165120.

The previous prime is 1165225553. The next prime is 1165225639. The reversal of 1165225612 is 2165225611.

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 3 ways as a sum of consecutive naturals, for example, 1111333 + ... + 1112380.

It is an arithmetic number, because the mean of its divisors is an integer number (171225978).

Almost surely, 2^1165225612 is an apocalyptic number.

It is an amenable number.

1165225612 is a deficient number, since it is larger than the sum of its proper divisors (889486124).

1165225612 is a wasteful number, since it uses less digits than its factorization.

1165225612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223848 (or 2223846 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 1165225612 is about 34135.4011548129. The cubic root of 1165225612 is about 1052.2929820044.

Subtracting 1165225612 from its reverse (2165225611), we obtain a palindrome (999999999).

The spelling of 1165225612 in words is "one billion, one hundred sixty-five million, two hundred twenty-five thousand, six hundred twelve".