205013329 has 4 divisors (see below), whose sum is σ = 213926976. Its totient is φ = 196099684.

The previous prime is 205013327. The next prime is 205013351. The reversal of 205013329 is 923310502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205013329 - 2¹ = 205013327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205013321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4456789 + ... + 4456834.

It is an arithmetic number, because the mean of its divisors is an integer number (53481744).

Almost surely, 2^205013329 is an apocalyptic number.

It is an amenable number.

205013329 is a deficient number, since it is larger than the sum of its proper divisors (8913647).

205013329 is an equidigital number, since it uses as much as digits as its factorization.

205013329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8913646.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 205013329 is about 14318.2865245811. The cubic root of 205013329 is about 589.6496330203.

The spelling of 205013329 in words is "two hundred five million, thirteen thousand, three hundred twenty-nine".