1082105691 has 4 divisors (see below), whose sum is σ = 1442807592. Its totient is φ = 721403792.

The previous prime is 1082105627. The next prime is 1082105711. The reversal of 1082105691 is 1965012801.

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 1082105691 - 2⁶ = 1082105627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1082105491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180350946 + ... + 180350951.

It is an arithmetic number, because the mean of its divisors is an integer number (360701898).

Almost surely, 2^1082105691 is an apocalyptic number.

1082105691 is a deficient number, since it is larger than the sum of its proper divisors (360701901).

1082105691 is an equidigital number, since it uses as much as digits as its factorization.

1082105691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360701900.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 1082105691 is about 32895.3749180641. The cubic root of 1082105691 is about 1026.6519278937.

The spelling of 1082105691 in words is "one billion, eighty-two million, one hundred five thousand, six hundred ninety-one".