204214523 has 4 divisors (see below), whose sum is σ = 216227160. Its totient is φ = 192201888.

The previous prime is 204214511. The next prime is 204214541. The reversal of 204214523 is 325412402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 204214523 - 2¹² = 204210427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204214553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6006293 + ... + 6006326.

It is an arithmetic number, because the mean of its divisors is an integer number (54056790).

Almost surely, 2^204214523 is an apocalyptic number.

204214523 is a deficient number, since it is larger than the sum of its proper divisors (12012637).

204214523 is a wasteful number, since it uses less digits than its factorization.

204214523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12012636.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 204214523 is about 14290.3646909377. The cubic root of 204214523 is about 588.8828068765.

Adding to 204214523 its reverse (325412402), we get a palindrome (529626925).

The spelling of 204214523 in words is "two hundred four million, two hundred fourteen thousand, five hundred twenty-three".