1085706091 has 2 divisors, whose sum is σ = 1085706092. Its totient is φ = 1085706090.

The previous prime is 1085706079. The next prime is 1085706101. The reversal of 1085706091 is 1906075801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1085706091 - 2¹⁹ = 1085181803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1085706091.

It is not a weakly prime, because it can be changed into another prime (1085706001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542853045 + 542853046.

It is an arithmetic number, because the mean of its divisors is an integer number (542853046).

Almost surely, 2^1085706091 is an apocalyptic number.

1085706091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085706091 is an equidigital number, since it uses as much as digits as its factorization.

1085706091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 1085706091 is about 32950.0544916090. The cubic root of 1085706091 is about 1027.7892985053.

The spelling of 1085706091 in words is "one billion, eighty-five million, seven hundred six thousand, ninety-one".