1085966117 has 4 divisors (see below), whose sum is σ = 1089672780. Its totient is φ = 1082259456.

The previous prime is 1085966113. The next prime is 1085966129. The reversal of 1085966117 is 7116695801.

It is a Cunningham number, because it is equal to 32954²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7116695801 = 617 ⋅11534353.

It can be written as a sum of positive squares in 2 ways, for example, as 1027458916 + 58507201 = 32054^2 + 7649^2 .

It is a cyclic number.

It is not a de Polignac number, because 1085966117 - 2² = 1085966113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085966113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1852892 + ... + 1853477.

It is an arithmetic number, because the mean of its divisors is an integer number (272418195).

Almost surely, 2^1085966117 is an apocalyptic number.

It is an amenable number.

1085966117 is a deficient number, since it is larger than the sum of its proper divisors (3706663).

1085966117 is an equidigital number, since it uses as much as digits as its factorization.

1085966117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706662.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 1085966117 is about 32954.0000151727. Note that the first 4 decimals coincide. The cubic root of 1085966117 is about 1027.8713436093.

The spelling of 1085966117 in words is "one billion, eighty-five million, nine hundred sixty-six thousand, one hundred seventeen".