206422135 has 8 divisors (see below), whose sum is σ = 248332896. Its totient is φ = 164720160.

The previous prime is 206422133. The next prime is 206422141. The reversal of 206422135 is 531224602.

206422135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 206422135 - 2¹ = 206422133 is a prime.

It is a super-2 number, since 2×206422135² = 85220195635916450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206422133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50011 + ... + 53980.

It is an arithmetic number, because the mean of its divisors is an integer number (31041612).

Almost surely, 2^206422135 is an apocalyptic number.

206422135 is a deficient number, since it is larger than the sum of its proper divisors (41910761).

206422135 is a wasteful number, since it uses less digits than its factorization.

206422135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104393.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 206422135 is about 14367.3983379038. The cubic root of 206422135 is about 590.9971980402.

Adding to 206422135 its reverse (531224602), we get a palindrome (737646737).

The spelling of 206422135 in words is "two hundred six million, four hundred twenty-two thousand, one hundred thirty-five".