223243091 has 4 divisors (see below), whose sum is σ = 227992992. Its totient is φ = 218493192.

The previous prime is 223243087. The next prime is 223243117. The reversal of 223243091 is 190342322.

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 223243091 - 2² = 223243087 is a prime.

It is a super-3 number, since 3×223243091³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223243091.

It is not an unprimeable number, because it can be changed into a prime (223243021) 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, 2374880 + ... + 2374973.

It is an arithmetic number, because the mean of its divisors is an integer number (56998248).

Almost surely, 2^223243091 is an apocalyptic number.

223243091 is a deficient number, since it is larger than the sum of its proper divisors (4749901).

223243091 is an equidigital number, since it uses as much as digits as its factorization.

223243091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4749900.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 223243091 is about 14941.3215948255. The cubic root of 223243091 is about 606.6329684149.

The spelling of 223243091 in words is "two hundred twenty-three million, two hundred forty-three thousand, ninety-one".