203485 has 4 divisors (see below), whose sum is σ = 244188. Its totient is φ = 162784.

The previous prime is 203461. The next prime is 203531. The reversal of 203485 is 584302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26244 + 177241 = 162^2 + 421^2 .

It is a cyclic number.

It is not a de Polignac number, because 203485 - 2⁹ = 202973 is a prime.

It is a super-2 number, since 2×203485² = 82812290450, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20344 + ... + 20353.

It is an arithmetic number, because the mean of its divisors is an integer number (61047).

2²⁰³⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

203485 is a deficient number, since it is larger than the sum of its proper divisors (40703).

203485 is an equidigital number, since it uses as much as digits as its factorization.

203485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40702.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 203485 is about 451.0931167730. The cubic root of 203485 is about 58.8180741019.

Adding to 203485 its reverse (584302), we get a palindrome (787787).

The spelling of 203485 in words is "two hundred three thousand, four hundred eighty-five".