1085057771 has 8 divisors (see below), whose sum is σ = 1243192800. Its totient is φ = 927704448.

The previous prime is 1085057749. The next prime is 1085057791. The reversal of 1085057771 is 1777505801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1085057771 - 2¹⁰ = 1085056747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085057741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192446 + ... + 198003.

It is an arithmetic number, because the mean of its divisors is an integer number (155399100).

Almost surely, 2^1085057771 is an apocalyptic number.

1085057771 is a deficient number, since it is larger than the sum of its proper divisors (158135029).

1085057771 is an equidigital number, since it uses as much as digits as its factorization.

1085057771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390853.

The product of its (nonzero) digits is 68600, while the sum is 41.

The square root of 1085057771 is about 32940.2151025156. The cubic root of 1085057771 is about 1027.5846792749.

The spelling of 1085057771 in words is "one billion, eighty-five million, fifty-seven thousand, seven hundred seventy-one".