1071080819 has 4 divisors (see below), whose sum is σ = 1075884096. Its totient is φ = 1066277544.

The previous prime is 1071080779. The next prime is 1071080839. The reversal of 1071080819 is 9180801701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9180801701 = 29 ⋅316579369.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1071080819 is a prime.

It is a super-2 number, since 2×1071080819² = 2294428241659421522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1071080839) 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, 2401304 + ... + 2401749.

It is an arithmetic number, because the mean of its divisors is an integer number (268971024).

Almost surely, 2^1071080819 is an apocalyptic number.

1071080819 is a deficient number, since it is larger than the sum of its proper divisors (4803277).

1071080819 is an equidigital number, since it uses as much as digits as its factorization.

1071080819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4803276.

The product of its (nonzero) digits is 4032, while the sum is 35.

The square root of 1071080819 is about 32727.3710982107. The cubic root of 1071080819 is about 1023.1533895343.

The spelling of 1071080819 in words is "one billion, seventy-one million, eighty thousand, eight hundred nineteen".