1085230903 has 4 divisors (see below), whose sum is σ = 1091504088. Its totient is φ = 1078957720.

The previous prime is 1085230901. The next prime is 1085230957. The reversal of 1085230903 is 3090325801.

It is a happy number.

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 1085230903 - 2¹ = 1085230901 is a prime.

It is a super-2 number, since 2×1085230903² = 2355452225652390818, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085230901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3136333 + ... + 3136678.

It is an arithmetic number, because the mean of its divisors is an integer number (272876022).

Almost surely, 2^1085230903 is an apocalyptic number.

1085230903 is a deficient number, since it is larger than the sum of its proper divisors (6273185).

1085230903 is an equidigital number, since it uses as much as digits as its factorization.

1085230903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6273184.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1085230903 is about 32942.8429708184. The cubic root of 1085230903 is about 1027.6393302296.

The spelling of 1085230903 in words is "one billion, eighty-five million, two hundred thirty thousand, nine hundred three".