223513523 has 8 divisors (see below), whose sum is σ = 226037760. Its totient is φ = 221001480.

The previous prime is 223513489. The next prime is 223513553. The reversal of 223513523 is 325315322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223513523 - 2¹⁴ = 223497139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223513492 and 223513501.

It is not an unprimeable number, because it can be changed into a prime (223513553) 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, 36668 + ... + 42326.

It is an arithmetic number, because the mean of its divisors is an integer number (28254720).

Almost surely, 2^223513523 is an apocalyptic number.

223513523 is a deficient number, since it is larger than the sum of its proper divisors (2524237).

223513523 is a wasteful number, since it uses less digits than its factorization.

223513523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6097.

The product of its digits is 5400, while the sum is 26.

The square root of 223513523 is about 14950.3686576619. The cubic root of 223513523 is about 606.8778237238.

Adding to 223513523 its reverse (325315322), we get a palindrome (548828845).

The spelling of 223513523 in words is "two hundred twenty-three million, five hundred thirteen thousand, five hundred twenty-three".