91134163 has 4 divisors (see below), whose sum is σ = 92287840. Its totient is φ = 89980488.

The previous prime is 91134143. The next prime is 91134167. The reversal of 91134163 is 36143119.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91134163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91134167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576720 + ... + 576877.

It is an arithmetic number, because the mean of its divisors is an integer number (23071960).

Almost surely, 2^91134163 is an apocalyptic number.

91134163 is a deficient number, since it is larger than the sum of its proper divisors (1153677).

91134163 is a wasteful number, since it uses less digits than its factorization.

91134163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153676.

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

The square root of 91134163 is about 9546.4214761344. The cubic root of 91134163 is about 450.0150826220.

The spelling of 91134163 in words is "ninety-one million, one hundred thirty-four thousand, one hundred sixty-three".