206695143 has 12 divisors (see below), whose sum is σ = 304912608. Its totient is φ = 134864640.

The previous prime is 206695141. The next prime is 206695207. The reversal of 206695143 is 341596602.

It is a happy number.

It is not a de Polignac number, because 206695143 - 2¹ = 206695141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206695098 and 206695107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206695141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243898 + ... + 244743.

It is an arithmetic number, because the mean of its divisors is an integer number (25409384).

Almost surely, 2^206695143 is an apocalyptic number.

206695143 is a deficient number, since it is larger than the sum of its proper divisors (98217465).

206695143 is a wasteful number, since it uses less digits than its factorization.

206695143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488694 (or 488691 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 206695143 is about 14376.8961532036. The cubic root of 206695143 is about 591.2576285803.

The spelling of 206695143 in words is "two hundred six million, six hundred ninety-five thousand, one hundred forty-three".