213164089 has 2 divisors, whose sum is σ = 213164090. Its totient is φ = 213164088.

The previous prime is 213164057. The next prime is 213164099. The reversal of 213164089 is 980461312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193210000 + 19954089 = 13900^2 + 4467^2 .

It is a cyclic number.

It is not a de Polignac number, because 213164089 - 2⁵ = 213164057 is a prime.

It is not a weakly prime, because it can be changed into another prime (213164099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106582044 + 106582045.

It is an arithmetic number, because the mean of its divisors is an integer number (106582045).

Almost surely, 2^213164089 is an apocalyptic number.

It is an amenable number.

213164089 is a deficient number, since it is larger than the sum of its proper divisors (1).

213164089 is an equidigital number, since it uses as much as digits as its factorization.

213164089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 213164089 is about 14600.1400335750. The cubic root of 213164089 is about 597.3625801627.

The spelling of 213164089 in words is "two hundred thirteen million, one hundred sixty-four thousand, eighty-nine".