206863195 has 16 divisors (see below), whose sum is σ = 309489408. Its totient is φ = 128953440.

The previous prime is 206863183. The next prime is 206863201. The reversal of 206863195 is 591368602.

It is not a de Polignac number, because 206863195 - 2⁹ = 206862683 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268269 + ... + 269038.

It is an arithmetic number, because the mean of its divisors is an integer number (19343088).

Almost surely, 2^206863195 is an apocalyptic number.

206863195 is a deficient number, since it is larger than the sum of its proper divisors (102626213).

206863195 is a wasteful number, since it uses less digits than its factorization.

206863195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537330.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 206863195 is about 14382.7394817538. The cubic root of 206863195 is about 591.4178244275.

The spelling of 206863195 in words is "two hundred six million, eight hundred sixty-three thousand, one hundred ninety-five".