223020091 has 8 divisors (see below), whose sum is σ = 255147264. Its totient is φ = 190959720.

The previous prime is 223020089. The next prime is 223020097. The reversal of 223020091 is 190020322.

It is a happy number.

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

It is not a de Polignac number, because 223020091 - 2¹ = 223020089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223020097) 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 7 ways as a sum of consecutive naturals, for example, 9325 + ... + 23086.

It is an arithmetic number, because the mean of its divisors is an integer number (31893408).

Almost surely, 2^223020091 is an apocalyptic number.

223020091 is a deficient number, since it is larger than the sum of its proper divisors (32127173).

223020091 is an equidigital number, since it uses as much as digits as its factorization.

223020091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33401.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 223020091 is about 14933.8572043528. The cubic root of 223020091 is about 606.4309103202.

The spelling of 223020091 in words is "two hundred twenty-three million, twenty thousand, ninety-one".