1071814081 has 4 divisors (see below), whose sum is σ = 1154261332. Its totient is φ = 989366832.

The previous prime is 1071814049. The next prime is 1071814123. The reversal of 1071814081 is 1804181701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 234579856 + 837234225 = 15316^2 + 28935^2 .

It is a cyclic number.

It is not a de Polignac number, because 1071814081 - 2⁵ = 1071814049 is a prime.

It is a super-2 number, since 2×1071814081² = 2297570848459749122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1071814021) 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 3 ways as a sum of consecutive naturals, for example, 41223606 + ... + 41223631.

It is an arithmetic number, because the mean of its divisors is an integer number (288565333).

Almost surely, 2^1071814081 is an apocalyptic number.

It is an amenable number.

1071814081 is a deficient number, since it is larger than the sum of its proper divisors (82447251).

1071814081 is an equidigital number, since it uses as much as digits as its factorization.

1071814081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82447250.

The product of its (nonzero) digits is 1792, while the sum is 31.

The square root of 1071814081 is about 32738.5717617614. The cubic root of 1071814081 is about 1023.3868198998.

Adding to 1071814081 its reverse (1804181701), we get a palindrome (2875995782).

The spelling of 1071814081 in words is "one billion, seventy-one million, eight hundred fourteen thousand, eighty-one".