205606534 has 32 divisors (see below), whose sum is σ = 375238656. Its totient is φ = 82481280.

The previous prime is 205606507. The next prime is 205606537. The reversal of 205606534 is 435606502.

It is a junction number, because it is equal to n+sod(n) for n = 205606496 and 205606505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205606537) 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 in 15 ways as a sum of consecutive naturals, for example, 43197 + ... + 47719.

It is an arithmetic number, because the mean of its divisors is an integer number (11726208).

Almost surely, 2^205606534 is an apocalyptic number.

205606534 is a deficient number, since it is larger than the sum of its proper divisors (169632122).

205606534 is a wasteful number, since it uses less digits than its factorization.

205606534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4740.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 205606534 is about 14338.9865053288. The cubic root of 205606534 is about 590.2178014224.

The spelling of 205606534 in words is "two hundred five million, six hundred six thousand, five hundred thirty-four".