164889203 has 2 divisors, whose sum is σ = 164889204. Its totient is φ = 164889202.

The previous prime is 164889191. The next prime is 164889209. The reversal of 164889203 is 302988461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164889203 - 2⁴ = 164889187 is a prime.

It is not a weakly prime, because it can be changed into another prime (164889209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82444601 + 82444602.

It is an arithmetic number, because the mean of its divisors is an integer number (82444602).

Almost surely, 2^164889203 is an apocalyptic number.

164889203 is a deficient number, since it is larger than the sum of its proper divisors (1).

164889203 is an equidigital number, since it uses as much as digits as its factorization.

164889203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 164889203 is about 12840.9190870436. The cubic root of 164889203 is about 548.3578600543.

The spelling of 164889203 in words is "one hundred sixty-four million, eight hundred eighty-nine thousand, two hundred three".