20606201 has 8 divisors (see below), whose sum is σ = 25690944. Its totient is φ = 16056720.

The previous prime is 20606197. The next prime is 20606219. The reversal of 20606201 is 10260602.

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

It is a cyclic number.

It is not a de Polignac number, because 20606201 - 2² = 20606197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20606201.

It is not an unprimeable number, because it can be changed into a prime (20606801) 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, 133730 + ... + 133883.

It is an arithmetic number, because the mean of its divisors is an integer number (3211368).

Almost surely, 2^20606201 is an apocalyptic number.

It is an amenable number.

20606201 is a deficient number, since it is larger than the sum of its proper divisors (5084743).

20606201 is a wasteful number, since it uses less digits than its factorization.

20606201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267631.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20606201 is about 4539.4053575331. The cubic root of 20606201 is about 274.1569819885.

Adding to 20606201 its reverse (10260602), we get a palindrome (30866803).

The spelling of 20606201 in words is "twenty million, six hundred six thousand, two hundred one".