203434133 has 6 divisors (see below), whose sum is σ = 236647926. Its totient is φ = 174372072.

The previous prime is 203434129. The next prime is 203434151. The reversal of 203434133 is 331434302.

It can be written as a sum of positive squares in only one way, i.e., 132756484 + 70677649 = 11522^2 + 8407^2 .

It is not a de Polignac number, because 203434133 - 2² = 203434129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203434099 and 203434108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203434633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2075810 + ... + 2075907.

It is an arithmetic number, because the mean of its divisors is an integer number (39441321).

Almost surely, 2^203434133 is an apocalyptic number.

It is an amenable number.

203434133 is a deficient number, since it is larger than the sum of its proper divisors (33213793).

203434133 is an equidigital number, since it uses as much as digits as its factorization.

203434133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151731 (or 4151724 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 203434133 is about 14263.0337936920. The cubic root of 203434133 is about 588.1317259680.

Adding to 203434133 its reverse (331434302), we get a palindrome (534868435).

The spelling of 203434133 in words is "two hundred three million, four hundred thirty-four thousand, one hundred thirty-three".