20144527 has 16 divisors (see below), whose sum is σ = 22921920. Its totient is φ = 17563392.

The previous prime is 20144521. The next prime is 20144549. The reversal of 20144527 is 72544102.

It is a cyclic number.

It is not a de Polignac number, because 20144527 - 2³ = 20144519 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 (20144521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26233 + ... + 26989.

It is an arithmetic number, because the mean of its divisors is an integer number (1432620).

Almost surely, 2^20144527 is an apocalyptic number.

20144527 is a deficient number, since it is larger than the sum of its proper divisors (2777393).

20144527 is a wasteful number, since it uses less digits than its factorization.

20144527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 20144527 is about 4488.2654778879. The cubic root of 20144527 is about 272.0940373741.

Adding to 20144527 its reverse (72544102), we get a palindrome (92688629).

The spelling of 20144527 in words is "twenty million, one hundred forty-four thousand, five hundred twenty-seven".