1085138003 has 4 divisors (see below), whose sum is σ = 1086831528. Its totient is φ = 1083444480.

The previous prime is 1085137997. The next prime is 1085138011. The reversal of 1085138003 is 3008315801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1085138003 - 2³⁰ = 11396179 is a prime.

It is a super-3 number, since 3×1085138003³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085138083) 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, 845801 + ... + 847082.

It is an arithmetic number, because the mean of its divisors is an integer number (271707882).

Almost surely, 2^1085138003 is an apocalyptic number.

1085138003 is a deficient number, since it is larger than the sum of its proper divisors (1693525).

1085138003 is an equidigital number, since it uses as much as digits as its factorization.

1085138003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693524.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1085138003 is about 32941.4329226887. The cubic root of 1085138003 is about 1027.6100060806.

The spelling of 1085138003 in words is "one billion, eighty-five million, one hundred thirty-eight thousand, three".