20620141 has 4 divisors (see below), whose sum is σ = 20712832. Its totient is φ = 20527452.

The previous prime is 20620129. The next prime is 20620151. The reversal of 20620141 is 14102602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20620141 - 2⁵ = 20620109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46011 + ... + 46456.

It is an arithmetic number, because the mean of its divisors is an integer number (5178208).

Almost surely, 2^20620141 is an apocalyptic number.

It is an amenable number.

20620141 is a deficient number, since it is larger than the sum of its proper divisors (92691).

20620141 is an equidigital number, since it uses as much as digits as its factorization.

20620141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92690.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 20620141 is about 4540.9405413416. The cubic root of 20620141 is about 274.2187900312.

Adding to 20620141 its reverse (14102602), we get a palindrome (34722743).

The spelling of 20620141 in words is "twenty million, six hundred twenty thousand, one hundred forty-one".