91123226 has 8 divisors (see below), whose sum is σ = 136733940. Its totient is φ = 45545248.

The previous prime is 91123211. The next prime is 91123231. The reversal of 91123226 is 62232119.

It can be written as a sum of positive squares in 2 ways, for example, as 82719025 + 8404201 = 9095^2 + 2899^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 91123195 and 91123204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710 + ... + 13518.

Almost surely, 2^91123226 is an apocalyptic number.

91123226 is a deficient number, since it is larger than the sum of its proper divisors (45610714).

91123226 is a wasteful number, since it uses less digits than its factorization.

91123226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16368.

The product of its digits is 1296, while the sum is 26.

The square root of 91123226 is about 9545.8486264973. The cubic root of 91123226 is about 449.9970798164.

The spelling of 91123226 in words is "ninety-one million, one hundred twenty-three thousand, two hundred twenty-six".