1081097572 has 24 divisors (see below), whose sum is σ = 1977123456. Its totient is φ = 516740448.

The previous prime is 1081097569. The next prime is 1081097581. The reversal of 1081097572 is 2757901801.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 58783 + ... + 74950.

It is an arithmetic number, because the mean of its divisors is an integer number (82380144).

Almost surely, 2^1081097572 is an apocalyptic number.

It is an amenable number.

1081097572 is a deficient number, since it is larger than the sum of its proper divisors (896025884).

1081097572 is a wasteful number, since it uses less digits than its factorization.

1081097572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133827 (or 133825 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 40.

The square root of 1081097572 is about 32880.0482359744. The cubic root of 1081097572 is about 1026.3330099120. Note that the first 3 decimals are identical.

The spelling of 1081097572 in words is "one billion, eighty-one million, ninety-seven thousand, five hundred seventy-two".