243525223 has 4 divisors (see below), whose sum is σ = 256342360. Its totient is φ = 230708088.

The previous prime is 243525197. The next prime is 243525229. The reversal of 243525223 is 322525342.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243525223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243525191 and 243525200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243525229) 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, 6408540 + ... + 6408577.

It is an arithmetic number, because the mean of its divisors is an integer number (64085590).

Almost surely, 2^243525223 is an apocalyptic number.

243525223 is a deficient number, since it is larger than the sum of its proper divisors (12817137).

243525223 is a wasteful number, since it uses less digits than its factorization.

243525223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12817136.

The product of its digits is 14400, while the sum is 28.

The square root of 243525223 is about 15605.2947104500. The cubic root of 243525223 is about 624.4744151007.

The spelling of 243525223 in words is "two hundred forty-three million, five hundred twenty-five thousand, two hundred twenty-three".