20614163 has 4 divisors (see below), whose sum is σ = 21279168. Its totient is φ = 19949160.

The previous prime is 20614151. The next prime is 20614171. The reversal of 20614163 is 36141602.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20614163 - 2⁴ = 20614147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20614133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332456 + ... + 332517.

It is an arithmetic number, because the mean of its divisors is an integer number (5319792).

Almost surely, 2^20614163 is an apocalyptic number.

20614163 is a deficient number, since it is larger than the sum of its proper divisors (665005).

20614163 is an equidigital number, since it uses as much as digits as its factorization.

20614163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665004.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20614163 is about 4540.2822599482. The cubic root of 20614163 is about 274.1922878140.

Adding to 20614163 its reverse (36141602), we get a palindrome (56755765).

The spelling of 20614163 in words is "twenty million, six hundred fourteen thousand, one hundred sixty-three".