189339203 has 2 divisors, whose sum is σ = 189339204. Its totient is φ = 189339202.

The previous prime is 189339187. The next prime is 189339287. The reversal of 189339203 is 302933981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189339203 - 2⁴ = 189339187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (189339803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94669601 + 94669602.

It is an arithmetic number, because the mean of its divisors is an integer number (94669602).

Almost surely, 2^189339203 is an apocalyptic number.

189339203 is a deficient number, since it is larger than the sum of its proper divisors (1).

189339203 is an equidigital number, since it uses as much as digits as its factorization.

189339203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 189339203 is about 13760.0582484232. The cubic root of 189339203 is about 574.2224681652. Note that the first 3 decimals are identical.

The spelling of 189339203 in words is "one hundred eighty-nine million, three hundred thirty-nine thousand, two hundred three".