223135520 has 48 divisors (see below), whose sum is σ = 544174848. Its totient is φ = 86373120.

The previous prime is 223135519. The next prime is 223135537. The reversal of 223135520 is 25531322.

It is a super-3 number, since 3×223135520³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17534 + ... + 27453.

It is an arithmetic number, because the mean of its divisors is an integer number (11336976).

Almost surely, 2^223135520 is an apocalyptic number.

223135520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223135520 is an abundant number, since it is smaller than the sum of its proper divisors (321039328).

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

223135520 is a wasteful number, since it uses less digits than its factorization.

223135520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45033 (or 45025 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 223135520 is about 14937.7213791127. The cubic root of 223135520 is about 606.5355162028.

Adding to 223135520 its reverse (25531322), we get a palindrome (248666842).

The spelling of 223135520 in words is "two hundred twenty-three million, one hundred thirty-five thousand, five hundred twenty".