213314789 has 2 divisors, whose sum is σ = 213314790. Its totient is φ = 213314788.

The previous prime is 213314747. The next prime is 213314797. The reversal of 213314789 is 987413312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143592289 + 69722500 = 11983^2 + 8350^2 .

It is a cyclic number.

It is not a de Polignac number, because 213314789 - 2²⁰ = 212266213 is a prime.

It is a super-2 number, since 2×213314789² = 91006398412229042, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213310789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106657394 + 106657395.

It is an arithmetic number, because the mean of its divisors is an integer number (106657395).

Almost surely, 2^213314789 is an apocalyptic number.

It is an amenable number.

213314789 is a deficient number, since it is larger than the sum of its proper divisors (1).

213314789 is an equidigital number, since it uses as much as digits as its factorization.

213314789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 213314789 is about 14605.3000311531. The cubic root of 213314789 is about 597.5033189011.

The spelling of 213314789 in words is "two hundred thirteen million, three hundred fourteen thousand, seven hundred eighty-nine".