204412523 has 8 divisors (see below), whose sum is σ = 243771648. Its totient is φ = 167592744.

The previous prime is 204412517. The next prime is 204412529. The reversal of 204412523 is 325214402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (204412517) and next prime (204412529).

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 204412523 - 2¹⁴ = 204396139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204412529) 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, 634661 + ... + 634982.

It is an arithmetic number, because the mean of its divisors is an integer number (30471456).

Almost surely, 2^204412523 is an apocalyptic number.

204412523 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

204412523 is a deficient number, since it is larger than the sum of its proper divisors (39359125).

204412523 is a wasteful number, since it uses less digits than its factorization.

204412523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269673.

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

The square root of 204412523 is about 14297.2907573428. The cubic root of 204412523 is about 589.0730661699.

Adding to 204412523 its reverse (325214402), we get a palindrome (529626925).

The spelling of 204412523 in words is "two hundred four million, four hundred twelve thousand, five hundred twenty-three".