91063 has 4 divisors (see below), whose sum is σ = 104080. Its totient is φ = 78048.

The previous prime is 91033. The next prime is 91079. The reversal of 91063 is 36019.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36019 = 181 ⋅199.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6498 + ... + 6511.

It is an arithmetic number, because the mean of its divisors is an integer number (26020).

2⁹¹⁰⁶³ is an apocalyptic number.

91063 is a deficient number, since it is larger than the sum of its proper divisors (13017).

91063 is a wasteful number, since it uses less digits than its factorization.

91063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13016.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 91063 is about 301.7664659965. The cubic root of 91063 is about 44.9897919232.

The spelling of 91063 in words is "ninety-one thousand, sixty-three".