189423203 has 2 divisors, whose sum is σ = 189423204. Its totient is φ = 189423202.

The previous prime is 189423173. The next prime is 189423233. The reversal of 189423203 is 302324981.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (189423173) and next prime (189423233).

It is a cyclic number.

It is not a de Polignac number, because 189423203 - 2¹⁰ = 189422179 is a prime.

It is a super-2 number, since 2×189423203² = 71762299669558418, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189423203.

It is not a weakly prime, because it can be changed into another prime (189423233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94711601 + 94711602.

It is an arithmetic number, because the mean of its divisors is an integer number (94711602).

Almost surely, 2^189423203 is an apocalyptic number.

189423203 is a deficient number, since it is larger than the sum of its proper divisors (1).

189423203 is an equidigital number, since it uses as much as digits as its factorization.

189423203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 189423203 is about 13763.1102226205. The cubic root of 189423203 is about 574.3073732020.

The spelling of 189423203 in words is "one hundred eighty-nine million, four hundred twenty-three thousand, two hundred three".