205263195 has 16 divisors (see below), whose sum is σ = 329107200. Its totient is φ = 109245024.

The previous prime is 205263187. The next prime is 205263199. The reversal of 205263195 is 591362502.

It is not a de Polignac number, because 205263195 - 2³ = 205263187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205263199) 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 15 ways as a sum of consecutive naturals, for example, 6745 + ... + 21354.

It is an arithmetic number, because the mean of its divisors is an integer number (20569200).

Almost surely, 2^205263195 is an apocalyptic number.

205263195 is a deficient number, since it is larger than the sum of its proper divisors (123844005).

205263195 is a wasteful number, since it uses less digits than its factorization.

205263195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28594.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 205263195 is about 14327.0092831686. The cubic root of 205263195 is about 589.8890866870.

The spelling of 205263195 in words is "two hundred five million, two hundred sixty-three thousand, one hundred ninety-five".