203429 has 2 divisors, whose sum is σ = 203430. Its totient is φ = 203428.

The previous prime is 203419. The next prime is 203431. The reversal of 203429 is 924302.

203429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112225 + 91204 = 335^2 + 302^2 .

It is a cyclic number.

It is not a de Polignac number, because 203429 - 2⁸ = 203173 is a prime.

It is a Sophie Germain prime.

Together with 203431, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 203429.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 203429.

It is not a weakly prime, because it can be changed into another prime (203419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101714 + 101715.

It is an arithmetic number, because the mean of its divisors is an integer number (101715).

2²⁰³⁴²⁹ is an apocalyptic number.

It is an amenable number.

203429 is a deficient number, since it is larger than the sum of its proper divisors (1).

203429 is an equidigital number, since it uses as much as digits as its factorization.

203429 is an odious number, because the sum of its binary digits is odd.

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

The square root of 203429 is about 451.0310410604. The cubic root of 203429 is about 58.8126779395.

The spelling of 203429 in words is "two hundred three thousand, four hundred twenty-nine".