91148 has 6 divisors (see below), whose sum is σ = 159516. Its totient is φ = 45572.

The previous prime is 91141. The next prime is 91151. The reversal of 91148 is 84119.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 91148.

It is not an unprimeable number, because it can be changed into a prime (91141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11390 + ... + 11397.

It is an arithmetic number, because the mean of its divisors is an integer number (26586).

2⁹¹¹⁴⁸ is an apocalyptic number.

It is an amenable number.

91148 is a deficient number, since it is larger than the sum of its proper divisors (68368).

91148 is a wasteful number, since it uses less digits than its factorization.

91148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22791 (or 22789 counting only the distinct ones).

The product of its digits is 288, while the sum is 23.

The square root of 91148 is about 301.9072705319. The cubic root of 91148 is about 45.0037856897.

Subtracting from 91148 its sum of digits (23), we obtain a cube (91125 = 45³).

It can be divided in two parts, 911 and 48, that added together give a palindrome (959).

The spelling of 91148 in words is "ninety-one thousand, one hundred forty-eight".