1081109632 has 32 divisors (see below), whose sum is σ = 2156060700. Its totient is φ = 539980800.

The previous prime is 1081109621. The next prime is 1081109639. The reversal of 1081109632 is 2369011801.

It can be written as a sum of positive squares in 2 ways, for example, as 1074266176 + 6843456 = 32776^2 + 2616^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 1081109594 and 1081109603.

It is not an unprimeable number, because it can be changed into a prime (1081109639) 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, 132882 + ... + 140782.

Almost surely, 2^1081109632 is an apocalyptic number.

It is an amenable number.

1081109632 is a deficient number, since it is larger than the sum of its proper divisors (1074951068).

1081109632 is an equidigital number, since it uses as much as digits as its factorization.

1081109632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8984 (or 8972 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1081109632 is about 32880.2316293544. The cubic root of 1081109632 is about 1026.3368262589.

The spelling of 1081109632 in words is "one billion, eighty-one million, one hundred nine thousand, six hundred thirty-two".