242903 has 8 divisors (see below), whose sum is σ = 259200. Its totient is φ = 227128.

The previous prime is 242887. The next prime is 242911. The reversal of 242903 is 309242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242903 - 2⁴ = 242887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268 + ... + 1446.

It is an arithmetic number, because the mean of its divisors is an integer number (32400).

2²⁴²⁹⁰³ is an apocalyptic number.

242903 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

242903 is a deficient number, since it is larger than the sum of its proper divisors (16297).

242903 is a wasteful number, since it uses less digits than its factorization.

242903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 242903 is about 492.8519047341. The cubic root of 242903 is about 62.3942103712.

The spelling of 242903 in words is "two hundred forty-two thousand, nine hundred three".