91122254 has 8 divisors (see below), whose sum is σ = 140017248. Its totient is φ = 44449840.

The previous prime is 91122247. The next prime is 91122257. The reversal of 91122254 is 45222119.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91122257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555542 + ... + 555705.

It is an arithmetic number, because the mean of its divisors is an integer number (17502156).

Almost surely, 2^91122254 is an apocalyptic number.

91122254 is a deficient number, since it is larger than the sum of its proper divisors (48894994).

91122254 is a wasteful number, since it uses less digits than its factorization.

91122254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111290.

The product of its digits is 1440, while the sum is 26.

The square root of 91122254 is about 9545.7977141777. The cubic root of 91122254 is about 449.9954797900.

The spelling of 91122254 in words is "ninety-one million, one hundred twenty-two thousand, two hundred fifty-four".