1071170081 has 4 divisors (see below), whose sum is σ = 1071325332. Its totient is φ = 1071014832.

The previous prime is 1071170077. The next prime is 1071170083. The reversal of 1071170081 is 1800711701.

1071170081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1800711701 = 79 ⋅22793819.

It can be written as a sum of positive squares in 2 ways, for example, as 400360081 + 670810000 = 20009^2 + 25900^2 .

It is a cyclic number.

It is not a de Polignac number, because 1071170081 - 2² = 1071170077 is a prime.

It is a super-2 number, since 2×1071170081² = 2294810684859093122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1071170081.

It is not an unprimeable number, because it can be changed into a prime (1071170083) 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, 66770 + ... + 81243.

It is an arithmetic number, because the mean of its divisors is an integer number (267831333).

Almost surely, 2^1071170081 is an apocalyptic number.

It is an amenable number.

1071170081 is a deficient number, since it is larger than the sum of its proper divisors (155251).

1071170081 is an equidigital number, since it uses as much as digits as its factorization.

1071170081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155250.

The product of its (nonzero) digits is 392, while the sum is 26.

The square root of 1071170081 is about 32728.7347907004. The cubic root of 1071170081 is about 1023.1818113488.

Adding to 1071170081 its reverse (1800711701), we get a palindrome (2871881782).

The spelling of 1071170081 in words is "one billion, seventy-one million, one hundred seventy thousand, eighty-one".