91655241 has 4 divisors (see below), whose sum is σ = 122206992. Its totient is φ = 61103492.

The previous prime is 91655233. The next prime is 91655243. The reversal of 91655241 is 14255619.

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.

It is a cyclic number.

It is not a de Polignac number, because 91655241 - 2³ = 91655233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91655243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15275871 + ... + 15275876.

It is an arithmetic number, because the mean of its divisors is an integer number (30551748).

Almost surely, 2^91655241 is an apocalyptic number.

It is an amenable number.

91655241 is a deficient number, since it is larger than the sum of its proper divisors (30551751).

91655241 is a wasteful number, since it uses less digits than its factorization.

91655241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30551750.

The product of its digits is 10800, while the sum is 33.

The square root of 91655241 is about 9573.6743729876. The cubic root of 91655241 is about 450.8711372031.

The spelling of 91655241 in words is "ninety-one million, six hundred fifty-five thousand, two hundred forty-one".