91605241 has 8 divisors (see below), whose sum is σ = 112745024. Its totient is φ = 72478800.

The previous prime is 91605233. The next prime is 91605247. The reversal of 91605241 is 14250619.

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

It is a cyclic number.

It is not a de Polignac number, because 91605241 - 2³ = 91605233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91605247) 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, 503235 + ... + 503416.

It is an arithmetic number, because the mean of its divisors is an integer number (14093128).

Almost surely, 2^91605241 is an apocalyptic number.

91605241 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

91605241 is a deficient number, since it is larger than the sum of its proper divisors (21139783).

91605241 is a wasteful number, since it uses less digits than its factorization.

91605241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006671.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 91605241 is about 9571.0626891688. The cubic root of 91605241 is about 450.7891355005.

The spelling of 91605241 in words is "ninety-one million, six hundred five thousand, two hundred forty-one".