213084293 has 2 divisors, whose sum is σ = 213084294. Its totient is φ = 213084292.

The previous prime is 213084269. The next prime is 213084331. The reversal of 213084293 is 392480312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194825764 + 18258529 = 13958^2 + 4273^2 .

It is a cyclic number.

It is not a de Polignac number, because 213084293 - 2⁸ = 213084037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213084203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106542146 + 106542147.

It is an arithmetic number, because the mean of its divisors is an integer number (106542147).

Almost surely, 2^213084293 is an apocalyptic number.

It is an amenable number.

213084293 is a deficient number, since it is larger than the sum of its proper divisors (1).

213084293 is an equidigital number, since it uses as much as digits as its factorization.

213084293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 213084293 is about 14597.4070642700. The cubic root of 213084293 is about 597.2880318123.

The spelling of 213084293 in words is "two hundred thirteen million, eighty-four thousand, two hundred ninety-three".