91193 has 2 divisors, whose sum is σ = 91194. Its totient is φ = 91192.

The previous prime is 91183. The next prime is 91199. The reversal of 91193 is 39119.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85264 + 5929 = 292^2 + 77^2 .

It is an emirp because it is prime and its reverse (39119) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91193 - 2⁶ = 91129 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (91199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45596 + 45597.

It is an arithmetic number, because the mean of its divisors is an integer number (45597).

2⁹¹¹⁹³ is an apocalyptic number.

It is an amenable number.

91193 is a deficient number, since it is larger than the sum of its proper divisors (1).

91193 is an equidigital number, since it uses as much as digits as its factorization.

91193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243, while the sum is 23.

The square root of 91193 is about 301.9817875303. The cubic root of 91193 is about 45.0111906325.

The spelling of 91193 in words is "ninety-one thousand, one hundred ninety-three".