20120853 has 16 divisors (see below), whose sum is σ = 27345600. Its totient is φ = 13157760.

The previous prime is 20120851. The next prime is 20120887. The reversal of 20120853 is 35802102.

It is not a de Polignac number, because 20120853 - 2¹ = 20120851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47583 + ... + 48003.

It is an arithmetic number, because the mean of its divisors is an integer number (1709100).

Almost surely, 2^20120853 is an apocalyptic number.

It is an amenable number.

20120853 is a deficient number, since it is larger than the sum of its proper divisors (7224747).

20120853 is a wasteful number, since it uses less digits than its factorization.

20120853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 20120853 is about 4485.6273808688. The cubic root of 20120853 is about 271.9874066041.

Adding to 20120853 its reverse (35802102), we get a palindrome (55922955).

The spelling of 20120853 in words is "twenty million, one hundred twenty thousand, eight hundred fifty-three".