20144035 has 4 divisors (see below), whose sum is σ = 24172848. Its totient is φ = 16115224.

The previous prime is 20144027. The next prime is 20144039. The reversal of 20144035 is 53044102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53044102 = 2 ⋅26522051.

It is a cyclic number.

It is not a de Polignac number, because 20144035 - 2³ = 20144027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20144039) 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, 2014399 + ... + 2014408.

It is an arithmetic number, because the mean of its divisors is an integer number (6043212).

Almost surely, 2^20144035 is an apocalyptic number.

20144035 is a deficient number, since it is larger than the sum of its proper divisors (4028813).

20144035 is an equidigital number, since it uses as much as digits as its factorization.

20144035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028812.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20144035 is about 4488.2106679611. The cubic root of 20144035 is about 272.0918221925.

Adding to 20144035 its reverse (53044102), we get a palindrome (73188137).

The spelling of 20144035 in words is "twenty million, one hundred forty-four thousand, thirty-five".