213102289 has 2 divisors, whose sum is σ = 213102290. Its totient is φ = 213102288.

The previous prime is 213102283. The next prime is 213102319. The reversal of 213102289 is 982201312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182466064 + 30636225 = 13508^2 + 5535^2 .

It is a cyclic number.

It is not a de Polignac number, because 213102289 - 2⁷ = 213102161 is a prime.

It is not a weakly prime, because it can be changed into another prime (213102283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106551144 + 106551145.

It is an arithmetic number, because the mean of its divisors is an integer number (106551145).

Almost surely, 2^213102289 is an apocalyptic number.

It is an amenable number.

213102289 is a deficient number, since it is larger than the sum of its proper divisors (1).

213102289 is an equidigital number, since it uses as much as digits as its factorization.

213102289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 213102289 is about 14598.0234620992. The cubic root of 213102289 is about 597.3048459608.

The spelling of 213102289 in words is "two hundred thirteen million, one hundred two thousand, two hundred eighty-nine".