205134346 has 4 divisors (see below), whose sum is σ = 307701522. Its totient is φ = 102567172.

The previous prime is 205134343. The next prime is 205134373. The reversal of 205134346 is 643431502.

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

It can be written as a sum of positive squares in only one way, i.e., 203205025 + 1929321 = 14255^2 + 1389^2 .

It is not an unprimeable number, because it can be changed into a prime (205134343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51283585 + ... + 51283588.

Almost surely, 2^205134346 is an apocalyptic number.

205134346 is a deficient number, since it is larger than the sum of its proper divisors (102567176).

205134346 is a wasteful number, since it uses less digits than its factorization.

205134346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102567175.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 205134346 is about 14322.5118607038. The cubic root of 205134346 is about 589.7656313216.

Adding to 205134346 its reverse (643431502), we get a palindrome (848565848).

The spelling of 205134346 in words is "two hundred five million, one hundred thirty-four thousand, three hundred forty-six".