223430501 has 4 divisors (see below), whose sum is σ = 255349152. Its totient is φ = 191511852.

The previous prime is 223430497. The next prime is 223430513. The reversal of 223430501 is 105034322.

It is a happy number.

223430501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 105034322 = 2 ⋅52517161.

It is not a de Polignac number, because 223430501 - 2² = 223430497 is a prime.

It is a super-2 number, since 2×223430501² = 99842377554222002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223430521) 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, 15959315 + ... + 15959328.

It is an arithmetic number, because the mean of its divisors is an integer number (63837288).

Almost surely, 2^223430501 is an apocalyptic number.

It is an amenable number.

223430501 is a deficient number, since it is larger than the sum of its proper divisors (31918651).

223430501 is an equidigital number, since it uses as much as digits as its factorization.

223430501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31918650.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 223430501 is about 14947.5918127302. The cubic root of 223430501 is about 606.8026747283.

Adding to 223430501 its reverse (105034322), we get a palindrome (328464823).

The spelling of 223430501 in words is "two hundred twenty-three million, four hundred thirty thousand, five hundred one".