91167 has 4 divisors (see below), whose sum is σ = 121560. Its totient is φ = 60776.

The previous prime is 91163. The next prime is 91183. The reversal of 91167 is 76119.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76119 = 3 ⋅25373.

It is a cyclic number.

It is not a de Polignac number, because 91167 - 2² = 91163 is a prime.

It is a super-2 number, since 2×91167² = 16622843778, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91163) 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, 15192 + ... + 15197.

It is an arithmetic number, because the mean of its divisors is an integer number (30390).

2⁹¹¹⁶⁷ is an apocalyptic number.

91167 is a deficient number, since it is larger than the sum of its proper divisors (30393).

91167 is a wasteful number, since it uses less digits than its factorization.

91167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30392.

The product of its digits is 378, while the sum is 24.

The square root of 91167 is about 301.9387355077. The cubic root of 91167 is about 45.0069125184.

It can be divided in two parts, 9 and 1167, that added together give a triangular number (1176 = T₄₈).

The spelling of 91167 in words is "ninety-one thousand, one hundred sixty-seven".