1091705795 has 4 divisors (see below), whose sum is σ = 1310046960. Its totient is φ = 873364632.

The previous prime is 1091705777. The next prime is 1091705807. The reversal of 1091705795 is 5975071901.

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

It is a cyclic number.

It is not a de Polignac number, because 1091705795 - 2⁶ = 1091705731 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109170575 + ... + 109170584.

It is an arithmetic number, because the mean of its divisors is an integer number (327511740).

Almost surely, 2^1091705795 is an apocalyptic number.

1091705795 is a deficient number, since it is larger than the sum of its proper divisors (218341165).

1091705795 is an equidigital number, since it uses as much as digits as its factorization.

1091705795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218341164.

The product of its (nonzero) digits is 99225, while the sum is 44.

The square root of 1091705795 is about 33040.9714596893. The cubic root of 1091705795 is about 1029.6790387763.

The spelling of 1091705795 in words is "one billion, ninety-one million, seven hundred five thousand, seven hundred ninety-five".