1159333381 has 12 divisors (see below), whose sum is σ = 1205265792. Its totient is φ = 1113966000.

The previous prime is 1159333379. The next prime is 1159333387. The reversal of 1159333381 is 1833339511.

It is not a de Polignac number, because 1159333381 - 2¹ = 1159333379 is a prime.

It is a super-2 number, since 2×1159333381² = 2688107776601782322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1159333381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159333387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2753551 + ... + 2753971.

It is an arithmetic number, because the mean of its divisors is an integer number (100438816).

Almost surely, 2^1159333381 is an apocalyptic number.

It is an amenable number.

1159333381 is a deficient number, since it is larger than the sum of its proper divisors (45932411).

1159333381 is an frugal number, since it uses more digits than its factorization.

1159333381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 663 counting only the distinct ones).

The product of its digits is 29160, while the sum is 37.

The square root of 1159333381 is about 34048.9850215832. The cubic root of 1159333381 is about 1050.5162634314.

The spelling of 1159333381 in words is "one billion, one hundred fifty-nine million, three hundred thirty-three thousand, three hundred eighty-one".