1150281081 has 36 divisors (see below), whose sum is σ = 1827001332. Its totient is φ = 721675008.

The previous prime is 1150281073. The next prime is 1150281103. The reversal of 1150281081 is 1801820511.

1150281081 is a `hidden beast` number, since 1 + 1 + 502 + 81 + 0 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 693005625 + 457275456 = 26325^2 + 21384^2 .

It is not a de Polignac number, because 1150281081 - 2³ = 1150281073 is a prime.

It is a super-2 number, since 2×1150281081² = 2646293130613057122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1150281061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 106381 + ... + 116693.

It is an arithmetic number, because the mean of its divisors is an integer number (50750037).

Almost surely, 2^1150281081 is an apocalyptic number.

It is an amenable number.

1150281081 is a deficient number, since it is larger than the sum of its proper divisors (676720251).

1150281081 is an frugal number, since it uses more digits than its factorization.

1150281081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10354 (or 10333 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 27.

The square root of 1150281081 is about 33915.7939756686. The cubic root of 1150281081 is about 1047.7749043711.

The spelling of 1150281081 in words is "one billion, one hundred fifty million, two hundred eighty-one thousand, eighty-one".