1153165326 has 16 divisors (see below), whose sum is σ = 2311542144. Its totient is φ = 383519864.

The previous prime is 1153165259. The next prime is 1153165331. The reversal of 1153165326 is 6235613511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214266 + ... + 219581.

It is an arithmetic number, because the mean of its divisors is an integer number (144471384).

Almost surely, 2^1153165326 is an apocalyptic number.

1153165326 is an abundant number, since it is smaller than the sum of its proper divisors (1158376818).

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

1153165326 is a wasteful number, since it uses less digits than its factorization.

1153165326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434295.

The product of its digits is 16200, while the sum is 33.

The square root of 1153165326 is about 33958.2880310536. The cubic root of 1153165326 is about 1048.6499128783.

Adding to 1153165326 its reverse (6235613511), we get a palindrome (7388778837).

The spelling of 1153165326 in words is "one billion, one hundred fifty-three million, one hundred sixty-five thousand, three hundred twenty-six".