91154222 has 8 divisors (see below), whose sum is σ = 137252016. Its totient is φ = 45403552.

The previous prime is 91154201. The next prime is 91154227. The reversal of 91154222 is 22245119.

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

It is a junction number, because it is equal to n+sod(n) for n = 91154191 and 91154200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91154227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86123 + ... + 87174.

It is an arithmetic number, because the mean of its divisors is an integer number (17156502).

Almost surely, 2^91154222 is an apocalyptic number.

91154222 is a deficient number, since it is larger than the sum of its proper divisors (46097794).

91154222 is a wasteful number, since it uses less digits than its factorization.

91154222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173562.

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

The square root of 91154222 is about 9547.4720214306. The cubic root of 91154222 is about 450.0480969167.

The spelling of 91154222 in words is "ninety-one million, one hundred fifty-four thousand, two hundred twenty-two".