230903 has 4 divisors (see below), whose sum is σ = 232128. Its totient is φ = 229680.

The previous prime is 230891. The next prime is 230929. The reversal of 230903 is 309032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 230903 - 2⁸ = 230647 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230933) 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, 263 + ... + 728.

It is an arithmetic number, because the mean of its divisors is an integer number (58032).

2²³⁰⁹⁰³ is an apocalyptic number.

230903 is a deficient number, since it is larger than the sum of its proper divisors (1225).

230903 is an equidigital number, since it uses as much as digits as its factorization.

230903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 230903 is about 480.5236726739. The cubic root of 230903 is about 61.3493348556.

Adding to 230903 its reverse (309032), we get a palindrome (539935).

It can be divided in two parts, 230 and 903, that multiplied together give a triangular number (207690 = T₆₄₄).

The spelling of 230903 in words is "two hundred thirty thousand, nine hundred three".