20606135 has 16 divisors (see below), whose sum is σ = 27488160. Its totient is φ = 14701440.

The previous prime is 20606119. The next prime is 20606141. The reversal of 20606135 is 53160602.

It is not a de Polignac number, because 20606135 - 2⁴ = 20606119 is a prime.

It is a super-2 number, since 2×20606135² = 849225599276450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20606135.

It is a congruent 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, 620 + ... + 6449.

It is an arithmetic number, because the mean of its divisors is an integer number (1718010).

Almost surely, 2^20606135 is an apocalyptic number.

20606135 is a deficient number, since it is larger than the sum of its proper divisors (6882025).

20606135 is a wasteful number, since it uses less digits than its factorization.

20606135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7138.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 20606135 is about 4539.3980878526. The cubic root of 20606135 is about 274.1566892873.

Adding to 20606135 its reverse (53160602), we get a palindrome (73766737).

The spelling of 20606135 in words is "twenty million, six hundred six thousand, one hundred thirty-five".