1085284815 has 16 divisors (see below), whose sum is σ = 1744044000. Its totient is φ = 576289152.

The previous prime is 1085284787. The next prime is 1085284847. The reversal of 1085284815 is 5184825801.

It is not a de Polignac number, because 1085284815 - 2¹¹ = 1085282767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154540 + ... + 161409.

It is an arithmetic number, because the mean of its divisors is an integer number (109002750).

Almost surely, 2^1085284815 is an apocalyptic number.

1085284815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1085284815 is a deficient number, since it is larger than the sum of its proper divisors (658759185).

1085284815 is a wasteful number, since it uses less digits than its factorization.

1085284815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316186.

The product of its (nonzero) digits is 102400, while the sum is 42.

The square root of 1085284815 is about 32943.6612264029. The cubic root of 1085284815 is about 1027.6563469382.

The spelling of 1085284815 in words is "one billion, eighty-five million, two hundred eighty-four thousand, eight hundred fifteen".