91241 has 4 divisors (see below), whose sum is σ = 95232. Its totient is φ = 87252.

The previous prime is 91237. The next prime is 91243. The reversal of 91241 is 14219.

It is a happy number.

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: 14219 = 59 ⋅241.

It is a cyclic number.

It is not a de Polignac number, because 91241 - 2² = 91237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91243) 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, 1961 + ... + 2006.

It is an arithmetic number, because the mean of its divisors is an integer number (23808).

2⁹¹²⁴¹ is an apocalyptic number.

It is an amenable number.

91241 is a deficient number, since it is larger than the sum of its proper divisors (3991).

91241 is a wasteful number, since it uses less digits than its factorization.

91241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990.

The product of its digits is 72, while the sum is 17.

The square root of 91241 is about 302.0612520665. The cubic root of 91241 is about 45.0190865536.

The spelling of 91241 in words is "ninety-one thousand, two hundred forty-one".