1085225765 has 16 divisors (see below), whose sum is σ = 1420204800. Its totient is φ = 791249472.

The previous prime is 1085225759. The next prime is 1085225777. The reversal of 1085225765 is 5675225801.

It is not a de Polignac number, because 1085225765 - 2¹⁰ = 1085224741 is a prime.

It is a super-2 number, since 2×1085225765² = 2355429922039670450, which contains 22 as substring.

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, 100535 + ... + 110804.

It is an arithmetic number, because the mean of its divisors is an integer number (88762800).

Almost surely, 2^1085225765 is an apocalyptic number.

It is an amenable number.

1085225765 is a deficient number, since it is larger than the sum of its proper divisors (334979035).

1085225765 is a wasteful number, since it uses less digits than its factorization.

1085225765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211436.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 1085225765 is about 32942.7649871713. The cubic root of 1085225765 is about 1027.6377084490.

The spelling of 1085225765 in words is "one billion, eighty-five million, two hundred twenty-five thousand, seven hundred sixty-five".