1081533136 has 20 divisors (see below), whose sum is σ = 2096828964. Its totient is φ = 540416000.

The previous prime is 1081533133. The next prime is 1081533191. The reversal of 1081533136 is 6313351801.

It can be written as a sum of positive squares in 2 ways, for example, as 1072169536 + 9363600 = 32744^2 + 3060^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1081533098 and 1081533107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081533133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4506 + ... + 46726.

Almost surely, 2^1081533136 is an apocalyptic number.

1081533136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1081533136 is a deficient number, since it is larger than the sum of its proper divisors (1015295828).

1081533136 is a wasteful number, since it uses less digits than its factorization.

1081533136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43830 (or 43824 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1081533136 is about 32886.6710993983. The cubic root of 1081533136 is about 1026.4708246973.

Adding to 1081533136 its reverse (6313351801), we get a palindrome (7394884937).

The spelling of 1081533136 in words is "one billion, eighty-one million, five hundred thirty-three thousand, one hundred thirty-six".