203234389 has 2 divisors, whose sum is σ = 203234390. Its totient is φ = 203234388.

The previous prime is 203234351. The next prime is 203234401. The reversal of 203234389 is 983432302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202578289 + 656100 = 14233^2 + 810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203234389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203237389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101617194 + 101617195.

It is an arithmetic number, because the mean of its divisors is an integer number (101617195).

Almost surely, 2^203234389 is an apocalyptic number.

It is an amenable number.

203234389 is a deficient number, since it is larger than the sum of its proper divisors (1).

203234389 is an equidigital number, since it uses as much as digits as its factorization.

203234389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 203234389 is about 14256.0299171964. The cubic root of 203234389 is about 587.9391751064.

The spelling of 203234389 in words is "two hundred three million, two hundred thirty-four thousand, three hundred eighty-nine".