203955 has 8 divisors (see below), whose sum is σ = 326352. Its totient is φ = 108768.

The previous prime is 203953. The next prime is 203969. The reversal of 203955 is 559302.

203955 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 203955 - 2¹ = 203953 is a prime.

203955 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (203953) 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, 6784 + ... + 6813.

It is an arithmetic number, because the mean of its divisors is an integer number (40794).

2²⁰³⁹⁵⁵ is an apocalyptic number.

203955 is a deficient number, since it is larger than the sum of its proper divisors (122397).

203955 is a wasteful number, since it uses less digits than its factorization.

203955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13605.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 203955 is about 451.6137730406. The cubic root of 203955 is about 58.8633243466.

The spelling of 203955 in words is "two hundred three thousand, nine hundred fifty-five".