205224929 has 32 divisors (see below), whose sum is σ = 272154624. Its totient is φ = 150258240.

The previous prime is 205224917. The next prime is 205224931. The reversal of 205224929 is 929422502.

It is a happy number.

It is not a de Polignac number, because 205224929 - 2¹⁶ = 205159393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205224989) 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 31 ways as a sum of consecutive naturals, for example, 63302 + ... + 66464.

It is an arithmetic number, because the mean of its divisors is an integer number (8504832).

Almost surely, 2^205224929 is an apocalyptic number.

It is an amenable number.

205224929 is a deficient number, since it is larger than the sum of its proper divisors (66929695).

205224929 is a wasteful number, since it uses less digits than its factorization.

205224929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 205224929 is about 14325.6737712402. The cubic root of 205224929 is about 589.8524279010.

The spelling of 205224929 in words is "two hundred five million, two hundred twenty-four thousand, nine hundred twenty-nine".