223140520 has 32 divisors (see below), whose sum is σ = 508122720. Its totient is φ = 88179520.

The previous prime is 223140499. The next prime is 223140523. The reversal of 223140520 is 25041322.

223140520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223140520³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223140523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30286 + ... + 36925.

It is an arithmetic number, because the mean of its divisors is an integer number (15878835).

Almost surely, 2^223140520 is an apocalyptic number.

223140520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223140520 is an abundant number, since it is smaller than the sum of its proper divisors (284982200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223140520 is a wasteful number, since it uses less digits than its factorization.

223140520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67305 (or 67301 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 223140520 is about 14937.8887397115. Note that the first 3 decimals coincide. The cubic root of 223140520 is about 606.5400465661.

Adding to 223140520 its reverse (25041322), we get a palindrome (248181842).

The spelling of 223140520 in words is "two hundred twenty-three million, one hundred forty thousand, five hundred twenty".