204343523 has 8 divisors (see below), whose sum is σ = 213566496. Its totient is φ = 195148800.

The previous prime is 204343511. The next prime is 204343543. The reversal of 204343523 is 325343402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204343523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204343492 and 204343501.

It is not an unprimeable number, because it can be changed into a prime (204343543) 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, 8483 + ... + 21923.

It is an arithmetic number, because the mean of its divisors is an integer number (26695812).

Almost surely, 2^204343523 is an apocalyptic number.

204343523 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

204343523 is a deficient number, since it is larger than the sum of its proper divisors (9222973).

204343523 is a wasteful number, since it uses less digits than its factorization.

204343523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14125.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 204343523 is about 14294.8775090939. The cubic root of 204343523 is about 589.0067776418.

Adding to 204343523 its reverse (325343402), we get a palindrome (529686925).

The spelling of 204343523 in words is "two hundred four million, three hundred forty-three thousand, five hundred twenty-three".