1085500003 has 4 divisors (see below), whose sum is σ = 1240571440. Its totient is φ = 930428568.

The previous prime is 1085499991. The next prime is 1085500007. The reversal of 1085500003 is 3000055801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3000055801 = 1373 ⋅2185037.

It is a cyclic number.

It is not a de Polignac number, because 1085500003 - 2⁹ = 1085499491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085500007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77535708 + ... + 77535721.

It is an arithmetic number, because the mean of its divisors is an integer number (310142860).

Almost surely, 2^1085500003 is an apocalyptic number.

1085500003 is a deficient number, since it is larger than the sum of its proper divisors (155071437).

1085500003 is an equidigital number, since it uses as much as digits as its factorization.

1085500003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155071436.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1085500003 is about 32946.9270645989. The cubic root of 1085500003 is about 1027.7242629656.

Adding to 1085500003 its reverse (3000055801), we get a palindrome (4085555804).

The spelling of 1085500003 in words is "one billion, eighty-five million, five hundred thousand, three".