91123359 has 8 divisors (see below), whose sum is σ = 121552512. Its totient is φ = 60721560.

The previous prime is 91123343. The next prime is 91123363. The reversal of 91123359 is 95332119.

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

It is not a de Polignac number, because 91123359 - 2⁴ = 91123343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91123369) 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, 2932 + ... + 13814.

It is an arithmetic number, because the mean of its divisors is an integer number (15194064).

Almost surely, 2^91123359 is an apocalyptic number.

91123359 is a deficient number, since it is larger than the sum of its proper divisors (30429153).

91123359 is a wasteful number, since it uses less digits than its factorization.

91123359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13677.

The product of its digits is 7290, while the sum is 33.

The square root of 91123359 is about 9545.8555928738. The cubic root of 91123359 is about 449.9972987492.

The spelling of 91123359 in words is "ninety-one million, one hundred twenty-three thousand, three hundred fifty-nine".