1085304145 has 4 divisors (see below), whose sum is σ = 1302364980. Its totient is φ = 868243312.

The previous prime is 1085304139. The next prime is 1085304173. The reversal of 1085304145 is 5414035801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5414035801 = 83 ⋅65229347.

It can be written as a sum of positive squares in 2 ways, for example, as 809345601 + 275958544 = 28449^2 + 16612^2 .

It is a cyclic number.

It is not a de Polignac number, because 1085304145 - 2³ = 1085304137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108530410 + ... + 108530419.

It is an arithmetic number, because the mean of its divisors is an integer number (325591245).

Almost surely, 2^1085304145 is an apocalyptic number.

It is an amenable number.

1085304145 is a deficient number, since it is larger than the sum of its proper divisors (217060835).

1085304145 is an equidigital number, since it uses as much as digits as its factorization.

1085304145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217060834.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 1085304145 is about 32943.9546047526. The cubic root of 1085304145 is about 1027.6624480952.

Adding to 1085304145 its reverse (5414035801), we get a palindrome (6499339946).

The spelling of 1085304145 in words is "one billion, eighty-five million, three hundred four thousand, one hundred forty-five".