20606141 has 2 divisors, whose sum is σ = 20606142. Its totient is φ = 20606140.

The previous prime is 20606119. The next prime is 20606143. The reversal of 20606141 is 14160602.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19545241 + 1060900 = 4421^2 + 1030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20606141 is a prime.

It is a super-2 number, since 2×20606141² = 849226093823762, which contains 22 as substring.

Together with 20606143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20606143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10303070 + 10303071.

It is an arithmetic number, because the mean of its divisors is an integer number (10303071).

Almost surely, 2^20606141 is an apocalyptic number.

It is an amenable number.

20606141 is a deficient number, since it is larger than the sum of its proper divisors (1).

20606141 is an equidigital number, since it uses as much as digits as its factorization.

20606141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20606141 is about 4539.3987487331. The cubic root of 20606141 is about 274.1567158965.

Adding to 20606141 its reverse (14160602), we get a palindrome (34766743).

The spelling of 20606141 in words is "twenty million, six hundred six thousand, one hundred forty-one".