210119989 has 2 divisors, whose sum is σ = 210119990. Its totient is φ = 210119988.

The previous prime is 210119981. The next prime is 210120041. The reversal of 210119989 is 989911012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198951025 + 11168964 = 14105^2 + 3342^2 .

It is a cyclic number.

It is not a de Polignac number, because 210119989 - 2³ = 210119981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210119981) 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, 105059994 + 105059995.

It is an arithmetic number, because the mean of its divisors is an integer number (105059995).

Almost surely, 2^210119989 is an apocalyptic number.

It is an amenable number.

210119989 is a deficient number, since it is larger than the sum of its proper divisors (1).

210119989 is an equidigital number, since it uses as much as digits as its factorization.

210119989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 40.

The square root of 210119989 is about 14495.5161688020. The cubic root of 210119989 is about 594.5053809046.

The spelling of 210119989 in words is "two hundred ten million, one hundred nineteen thousand, nine hundred eighty-nine".