20606115 has 16 divisors (see below), whose sum is σ = 33264288. Its totient is φ = 10891776.

The previous prime is 20606099. The next prime is 20606119. The reversal of 20606115 is 51160602.

It is a happy number.

It is not a de Polignac number, because 20606115 - 2⁴ = 20606099 is a prime.

It is a super-2 number, since 2×20606115² = 849223950786450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20606091 and 20606100.

It is not an unprimeable number, because it can be changed into a prime (20606119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4384 + ... + 7773.

It is an arithmetic number, because the mean of its divisors is an integer number (2079018).

Almost surely, 2^20606115 is an apocalyptic number.

20606115 is a deficient number, since it is larger than the sum of its proper divisors (12658173).

20606115 is a wasteful number, since it uses less digits than its factorization.

20606115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12278.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 20606115 is about 4539.3958849168. The cubic root of 20606115 is about 274.1566005898.

Adding to 20606115 its reverse (51160602), we get a palindrome (71766717).

The spelling of 20606115 in words is "twenty million, six hundred six thousand, one hundred fifteen".