204140343 has 16 divisors (see below), whose sum is σ = 301802112. Its totient is φ = 121692000.

The previous prime is 204140329. The next prime is 204140429. The reversal of 204140343 is 343041402.

It is not a de Polignac number, because 204140343 - 2⁴ = 204140327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204140303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48693 + ... + 52718.

It is an arithmetic number, because the mean of its divisors is an integer number (18862632).

Almost surely, 2^204140343 is an apocalyptic number.

204140343 is a deficient number, since it is larger than the sum of its proper divisors (97661769).

204140343 is a wasteful number, since it uses less digits than its factorization.

204140343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101486.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 204140343 is about 14287.7690000924. The cubic root of 204140343 is about 588.8114952377.

Adding to 204140343 its reverse (343041402), we get a palindrome (547181745).

The spelling of 204140343 in words is "two hundred four million, one hundred forty thousand, three hundred forty-three".