223415231 has 4 divisors (see below), whose sum is σ = 240601032. Its totient is φ = 206229432.

The previous prime is 223415209. The next prime is 223415237. The reversal of 223415231 is 132514322.

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 223415231 - 2¹⁸ = 223153087 is a prime.

It is a super-2 number, since 2×223415231² = 99828730885566722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223415197 and 223415206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223415237) 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, 8592881 + ... + 8592906.

It is an arithmetic number, because the mean of its divisors is an integer number (60150258).

Almost surely, 2^223415231 is an apocalyptic number.

223415231 is a deficient number, since it is larger than the sum of its proper divisors (17185801).

223415231 is a wasteful number, since it uses less digits than its factorization.

223415231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17185800.

The product of its digits is 1440, while the sum is 23.

The square root of 223415231 is about 14947.0810193830. The cubic root of 223415231 is about 606.7888507608.

Adding to 223415231 its reverse (132514322), we get a palindrome (355929553).

Subtracting from 223415231 its reverse (132514322), we obtain a palindrome (90900909).

It can be divided in two parts, 22341 and 5231, that added together give a palindrome (27572).

The spelling of 223415231 in words is "two hundred twenty-three million, four hundred fifteen thousand, two hundred thirty-one".