205143230 has 8 divisors (see below), whose sum is σ = 369257832. Its totient is φ = 82057288.

The previous prime is 205143217. The next prime is 205143241. The reversal of 205143230 is 32341502.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10257152 + ... + 10257171.

It is an arithmetic number, because the mean of its divisors is an integer number (46157229).

Almost surely, 2^205143230 is an apocalyptic number.

205143230 is a deficient number, since it is larger than the sum of its proper divisors (164114602).

205143230 is a wasteful number, since it uses less digits than its factorization.

205143230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20514330.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 205143230 is about 14322.8219984750. The cubic root of 205143230 is about 589.7741450953.

Adding to 205143230 its reverse (32341502), we get a palindrome (237484732).

The spelling of 205143230 in words is "two hundred five million, one hundred forty-three thousand, two hundred thirty".