220089091 has 4 divisors (see below), whose sum is σ = 227678400. Its totient is φ = 212499784.

The previous prime is 220089073. The next prime is 220089097. The reversal of 220089091 is 190980022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220089091 - 2⁵ = 220089059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220089097) 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 3 ways as a sum of consecutive naturals, for example, 3794611 + ... + 3794668.

It is an arithmetic number, because the mean of its divisors is an integer number (56919600).

Almost surely, 2^220089091 is an apocalyptic number.

220089091 is a deficient number, since it is larger than the sum of its proper divisors (7589309).

220089091 is an equidigital number, since it uses as much as digits as its factorization.

220089091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7589308.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 220089091 is about 14835.3999272012. The cubic root of 220089091 is about 603.7625513953.

The spelling of 220089091 in words is "two hundred twenty million, eighty-nine thousand, ninety-one".