205196331 has 8 divisors (see below), whose sum is σ = 275338384. Its totient is φ = 135925920.

The previous prime is 205196323. The next prime is 205196351. The reversal of 205196331 is 133691502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 205196331 - 2³ = 205196323 is a prime.

It is a super-2 number, since 2×205196331² = 84211068511723122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205196351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217360 + ... + 218301.

It is an arithmetic number, because the mean of its divisors is an integer number (34417298).

Almost surely, 2^205196331 is an apocalyptic number.

205196331 is a deficient number, since it is larger than the sum of its proper divisors (70142053).

205196331 is a wasteful number, since it uses less digits than its factorization.

205196331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435821.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 205196331 is about 14324.6755984211. The cubic root of 205196331 is about 589.8250280729.

The spelling of 205196331 in words is "two hundred five million, one hundred ninety-six thousand, three hundred thirty-one".