219220093 has 2 divisors, whose sum is σ = 219220094. Its totient is φ = 219220092.

The previous prime is 219220073. The next prime is 219220109. The reversal of 219220093 is 390022912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186650244 + 32569849 = 13662^2 + 5707^2 .

It is a cyclic number.

It is not a de Polignac number, because 219220093 - 2²⁵ = 185665661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (219220013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109610046 + 109610047.

It is an arithmetic number, because the mean of its divisors is an integer number (109610047).

Almost surely, 2^219220093 is an apocalyptic number.

It is an amenable number.

219220093 is a deficient number, since it is larger than the sum of its proper divisors (1).

219220093 is an equidigital number, since it uses as much as digits as its factorization.

219220093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 219220093 is about 14806.0829728865. The cubic root of 219220093 is about 602.9668728541.

The spelling of 219220093 in words is "two hundred nineteen million, two hundred twenty thousand, ninety-three".