1085494771 has 2 divisors, whose sum is σ = 1085494772. Its totient is φ = 1085494770.

The previous prime is 1085494733. The next prime is 1085494783. The reversal of 1085494771 is 1774945801.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1085494771 - 2²¹ = 1083397619 is a prime.

It is not a weakly prime, because it can be changed into another prime (1085194771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542747385 + 542747386.

It is an arithmetic number, because the mean of its divisors is an integer number (542747386).

Almost surely, 2^1085494771 is an apocalyptic number.

1085494771 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085494771 is an equidigital number, since it uses as much as digits as its factorization.

1085494771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 1085494771 is about 32946.8476640786. The cubic root of 1085494771 is about 1027.7226117874.

It can be divided in two parts, 10854 and 94771, that added together give a square (105625 = 325²).

The spelling of 1085494771 in words is "one billion, eighty-five million, four hundred ninety-four thousand, seven hundred seventy-one".