205200354134 has 8 divisors (see below), whose sum is σ = 309501087168. Its totient is φ = 102033325080.

The previous prime is 205200354119. The next prime is 205200354187. The reversal of 205200354134 is 431453002502.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 205200354097 and 205200354106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283425542 + ... + 283426265.

It is an arithmetic number, because the mean of its divisors is an integer number (38687635896).

Almost surely, 2^205200354134 is an apocalyptic number.

205200354134 is a deficient number, since it is larger than the sum of its proper divisors (104300733034).

205200354134 is a wasteful number, since it uses less digits than its factorization.

205200354134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566851990.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 205200354134 its reverse (431453002502), we get a palindrome (636653356636).

The spelling of 205200354134 in words is "two hundred five billion, two hundred million, three hundred fifty-four thousand, one hundred thirty-four".