20606133 has 8 divisors (see below), whose sum is σ = 27508768. Its totient is φ = 13720464.

The previous prime is 20606119. The next prime is 20606141. The reversal of 20606133 is 33160602.

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

It is not a de Polignac number, because 20606133 - 2⁹ = 20605621 is a prime.

It is a super-2 number, since 2×20606133² = 849225434427378, 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 (20606143) 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, 1066 + ... + 6507.

It is an arithmetic number, because the mean of its divisors is an integer number (3438596).

Almost surely, 2^20606133 is an apocalyptic number.

It is an amenable number.

20606133 is a deficient number, since it is larger than the sum of its proper divisors (6902635).

20606133 is an equidigital number, since it uses as much as digits as its factorization.

20606133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8483.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 20606133 is about 4539.3978675591. The cubic root of 20606133 is about 274.1566804175.

Adding to 20606133 its reverse (33160602), we get a palindrome (53766735).

The spelling of 20606133 in words is "twenty million, six hundred six thousand, one hundred thirty-three".