91180241 has 4 divisors (see below), whose sum is σ = 91251312. Its totient is φ = 91109172.

The previous prime is 91180237. The next prime is 91180261. The reversal of 91180241 is 14208119.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14208119 = 797 ⋅17827.

It is a cyclic number.

It is not a de Polignac number, because 91180241 - 2² = 91180237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 91180241.

It is not an unprimeable number, because it can be changed into a prime (91180261) 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, 33575 + ... + 36188.

It is an arithmetic number, because the mean of its divisors is an integer number (22812828).

Almost surely, 2^91180241 is an apocalyptic number.

It is an amenable number.

91180241 is a deficient number, since it is larger than the sum of its proper divisors (71071).

91180241 is a wasteful number, since it uses less digits than its factorization.

91180241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71070.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 91180241 is about 9548.8345362144. The cubic root of 91180241 is about 450.0909133188.

The spelling of 91180241 in words is "ninety-one million, one hundred eighty thousand, two hundred forty-one".