91230117 has 32 divisors (see below), whose sum is σ = 137908224. Its totient is φ = 53145600.

The previous prime is 91230089. The next prime is 91230131. The reversal of 91230117 is 71103219.

It is not a de Polignac number, because 91230117 - 2¹⁰ = 91229093 is a prime.

It is a super-3 number, since 3×91230117³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91230137) 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 31 ways as a sum of consecutive naturals, for example, 262738 + ... + 263084.

It is an arithmetic number, because the mean of its divisors is an integer number (4309632).

Almost surely, 2^91230117 is an apocalyptic number.

It is an amenable number.

91230117 is a deficient number, since it is larger than the sum of its proper divisors (46678107).

91230117 is a wasteful number, since it uses less digits than its factorization.

91230117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 91230117 is about 9551.4458067876. The cubic root of 91230117 is about 450.1729656078.

The spelling of 91230117 in words is "ninety-one million, two hundred thirty thousand, one hundred seventeen".