219376193 has 2 divisors, whose sum is σ = 219376194. Its totient is φ = 219376192.

The previous prime is 219376159. The next prime is 219376217. The reversal of 219376193 is 391673912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199600384 + 19775809 = 14128^2 + 4447^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-219376193 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 219376193.

It is not a weakly prime, because it can be changed into another prime (219376103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109688096 + 109688097.

It is an arithmetic number, because the mean of its divisors is an integer number (109688097).

Almost surely, 2^219376193 is an apocalyptic number.

It is an amenable number.

219376193 is a deficient number, since it is larger than the sum of its proper divisors (1).

219376193 is an equidigital number, since it uses as much as digits as its factorization.

219376193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 41.

The square root of 219376193 is about 14811.3535168127. The cubic root of 219376193 is about 603.1099570572.

The spelling of 219376193 in words is "two hundred nineteen million, three hundred seventy-six thousand, one hundred ninety-three".