206988195 has 16 divisors (see below), whose sum is σ = 331634592. Its totient is φ = 110242560.

The previous prime is 206988193. The next prime is 206988241. The reversal of 206988195 is 591889602.

It is a happy number.

206988195 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 206988195 - 2¹ = 206988193 is a prime.

It is a super-2 number, since 2×206988195² = 85688225738716050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206988191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2349 + ... + 20481.

It is an arithmetic number, because the mean of its divisors is an integer number (20727162).

Almost surely, 2^206988195 is an apocalyptic number.

206988195 is a deficient number, since it is larger than the sum of its proper divisors (124646397).

206988195 is a wasteful number, since it uses less digits than its factorization.

206988195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18902.

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 206988195 is about 14387.0843119793. The cubic root of 206988195 is about 591.5369246256.

The spelling of 206988195 in words is "two hundred six million, nine hundred eighty-eight thousand, one hundred ninety-five".