1165422213 has 24 divisors (see below), whose sum is σ = 1758651648. Its totient is φ = 742290912.

The previous prime is 1165422211. The next prime is 1165422227. The reversal of 1165422213 is 3122245611.

1165422213 is a `hidden beast` number, since 1 + 1 + 654 + 2 + 2 + 2 + 1 + 3 = 666.

It is not a de Polignac number, because 1165422213 - 2¹ = 1165422211 is a prime.

It is a super-3 number, since 3×1165422213³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165422211) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 203556 + ... + 209202.

It is an arithmetic number, because the mean of its divisors is an integer number (73277152).

Almost surely, 2^1165422213 is an apocalyptic number.

It is an amenable number.

1165422213 is a deficient number, since it is larger than the sum of its proper divisors (593229435).

1165422213 is a wasteful number, since it uses less digits than its factorization.

1165422213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673 (or 6670 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1165422213 is about 34138.2807563591. The cubic root of 1165422213 is about 1052.3521608782.

Adding to 1165422213 its reverse (3122245611), we get a palindrome (4287667824).

The spelling of 1165422213 in words is "one billion, one hundred sixty-five million, four hundred twenty-two thousand, two hundred thirteen".