1159811136 has 315 divisors, whose sum is σ = 3868934223. Its totient is φ = 343284480.

The previous prime is 1159811113. The next prime is 1159811197. The reversal of 1159811136 is 6311189511.

The square root of 1159811136 is 34056.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×1159811136² = 2690323742379220992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1159811136.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 26972331 + ... + 26972373.

Almost surely, 2^1159811136 is an apocalyptic number.

1159811136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1159811136 is the 34056-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1159811136

1159811136 is an abundant number, since it is smaller than the sum of its proper divisors (2709123087).

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

1159811136 is an equidigital number, since it uses as much as digits as its factorization.

1159811136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 59 counting only the distinct ones).

The product of its digits is 6480, while the sum is 36.

The cubic root of 1159811136 is about 1050.6605476323.

Multiplying 1159811136 by its sum of digits (36), we get a square (41753200896 = 204336²).

1159811136 divided by its sum of digits (36) gives a square (32216976 = 5676²).

The spelling of 1159811136 in words is "one billion, one hundred fifty-nine million, eight hundred eleven thousand, one hundred thirty-six".