91450 has 24 divisors (see below), whose sum is σ = 178560. Its totient is φ = 34800.

The previous prime is 91433. The next prime is 91453. The reversal of 91450 is 5419.

It is not an unprimeable number, because it can be changed into a prime (91453) by changing a digit.

91450 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1521 + ... + 1579.

It is an arithmetic number, because the mean of its divisors is an integer number (7440).

2⁹¹⁴⁵⁰ is an apocalyptic number.

91450 is a deficient number, since it is larger than the sum of its proper divisors (87110).

91450 is a wasteful number, since it uses less digits than its factorization.

91450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 91450 is about 302.4070105007. The cubic root of 91450 is about 45.0534344674.

Adding to 91450 its reverse (5419), we get a palindrome (96869).

The spelling of 91450 in words is "ninety-one thousand, four hundred fifty".