91119 has 8 divisors (see below), whose sum is σ = 138880. Its totient is φ = 52056.

The previous prime is 91099. The next prime is 91121.

91119 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91119 - 2⁸ = 90863 is a prime.

It is a super-2 number, since 2×91119² = 16605344322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 4339 = 91119 / (9 + 1 + 1 + 1 + 9).

It is a junction number, because it is equal to n+sod(n) for n = 91095 and 91104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2149 + ... + 2190.

It is an arithmetic number, because the mean of its divisors is an integer number (17360).

2⁹¹¹¹⁹ is an apocalyptic number.

91119 is a deficient number, since it is larger than the sum of its proper divisors (47761).

91119 is a wasteful number, since it uses less digits than its factorization.

91119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4349.

The product of its digits is 81, while the sum is 21.

The square root of 91119 is about 301.8592387190. The cubic root of 91119 is about 44.9990123240. Note that the first 3 decimals are identical.

It can be divided in two parts, 91 and 119, that added together give a triangular number (210 = T₂₀).

The spelling of 91119 in words is "ninety-one thousand, one hundred nineteen".