205135330 has 48 divisors (see below), whose sum is σ = 385487424. Its totient is φ = 78569120.

The previous prime is 205135313. The next prime is 205135351. The reversal of 205135330 is 33531502.

It is a happy number.

205135330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×205135330² = 84161007228417800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2471469 + ... + 2471551.

It is an arithmetic number, because the mean of its divisors is an integer number (8030988).

Almost surely, 2^205135330 is an apocalyptic number.

205135330 is a deficient number, since it is larger than the sum of its proper divisors (180352094).

205135330 is an equidigital number, since it uses as much as digits as its factorization.

205135330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 205135330 is about 14322.5462121789. The cubic root of 205135330 is about 589.7665743271.

Adding to 205135330 its reverse (33531502), we get a palindrome (238666832).

The spelling of 205135330 in words is "two hundred five million, one hundred thirty-five thousand, three hundred thirty".