213422593 has 2 divisors, whose sum is σ = 213422594. Its totient is φ = 213422592.

The previous prime is 213422567. The next prime is 213422597. The reversal of 213422593 is 395224312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206410689 + 7011904 = 14367^2 + 2648^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213422593 is a prime.

It is not a weakly prime, because it can be changed into another prime (213422597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106711296 + 106711297.

It is an arithmetic number, because the mean of its divisors is an integer number (106711297).

Almost surely, 2^213422593 is an apocalyptic number.

It is an amenable number.

213422593 is a deficient number, since it is larger than the sum of its proper divisors (1).

213422593 is an equidigital number, since it uses as much as digits as its factorization.

213422593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 31.

The square root of 213422593 is about 14608.9901430592. The cubic root of 213422593 is about 597.6039563989.

The spelling of 213422593 in words is "two hundred thirteen million, four hundred twenty-two thousand, five hundred ninety-three".