213194089 has 2 divisors, whose sum is σ = 213194090. Its totient is φ = 213194088.

The previous prime is 213194063. The next prime is 213194119. The reversal of 213194089 is 980491312.

213194089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115025625 + 98168464 = 10725^2 + 9908^2 .

It is a cyclic number.

It is not a de Polignac number, because 213194089 - 2⁷ = 213193961 is a prime.

It is not a weakly prime, because it can be changed into another prime (213194029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106597044 + 106597045.

It is an arithmetic number, because the mean of its divisors is an integer number (106597045).

Almost surely, 2^213194089 is an apocalyptic number.

It is an amenable number.

213194089 is a deficient number, since it is larger than the sum of its proper divisors (1).

213194089 is an equidigital number, since it uses as much as digits as its factorization.

213194089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 213194089 is about 14601.1673848360. The cubic root of 213194089 is about 597.3906024512.

The spelling of 213194089 in words is "two hundred thirteen million, one hundred ninety-four thousand, eighty-nine".