213230093 has 2 divisors, whose sum is σ = 213230094. Its totient is φ = 213230092.

The previous prime is 213230081. The next prime is 213230107. The reversal of 213230093 is 390032312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134606404 + 78623689 = 11602^2 + 8867^2 .

It is a cyclic number.

It is not a de Polignac number, because 213230093 - 2¹⁶ = 213164557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213230063) 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, 106615046 + 106615047.

It is an arithmetic number, because the mean of its divisors is an integer number (106615047).

Almost surely, 2^213230093 is an apocalyptic number.

It is an amenable number.

213230093 is a deficient number, since it is larger than the sum of its proper divisors (1).

213230093 is an equidigital number, since it uses as much as digits as its factorization.

213230093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 213230093 is about 14602.4002479045. The cubic root of 213230093 is about 597.4242294632.

The spelling of 213230093 in words is "two hundred thirteen million, two hundred thirty thousand, ninety-three".