1165171226 has 8 divisors (see below), whose sum is σ = 1764725664. Its totient is φ = 576929340.

The previous prime is 1165171159. The next prime is 1165171229. The reversal of 1165171226 is 6221715611.

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

It is a junction number, because it is equal to n+sod(n) for n = 1165171192 and 1165171201.

It is not an unprimeable number, because it can be changed into a prime (1165171229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2827880 + ... + 2828291.

It is an arithmetic number, because the mean of its divisors is an integer number (220590708).

Almost surely, 2^1165171226 is an apocalyptic number.

1165171226 is a deficient number, since it is larger than the sum of its proper divisors (599554438).

1165171226 is a wasteful number, since it uses less digits than its factorization.

1165171226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656276.

The product of its digits is 5040, while the sum is 32.

The square root of 1165171226 is about 34134.6045238553. The cubic root of 1165171226 is about 1052.2766100973.

Adding to 1165171226 its reverse (6221715611), we get a palindrome (7386886837).

The spelling of 1165171226 in words is "one billion, one hundred sixty-five million, one hundred seventy-one thousand, two hundred twenty-six".