213305093 has 2 divisors, whose sum is σ = 213305094. Its totient is φ = 213305092.

The previous prime is 213305089. The next prime is 213305101. The reversal of 213305093 is 390503312.

213305093 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., 129436129 + 83868964 = 11377^2 + 9158^2 .

It is a cyclic number.

It is not a de Polignac number, because 213305093 - 2² = 213305089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213305033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106652546 + 106652547.

It is an arithmetic number, because the mean of its divisors is an integer number (106652547).

Almost surely, 2^213305093 is an apocalyptic number.

It is an amenable number.

213305093 is a deficient number, since it is larger than the sum of its proper divisors (1).

213305093 is an equidigital number, since it uses as much as digits as its factorization.

213305093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 213305093 is about 14604.9680930839. The cubic root of 213305093 is about 597.4942658017.

The spelling of 213305093 in words is "two hundred thirteen million, three hundred five thousand, ninety-three".