20012245 has 16 divisors (see below), whose sum is σ = 26345088. Its totient is φ = 14472640.

The previous prime is 20012219. The next prime is 20012261. The reversal of 20012245 is 54221002.

It is not a de Polignac number, because 20012245 - 2¹¹ = 20010197 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 9912 + ... + 11758.

It is an arithmetic number, because the mean of its divisors is an integer number (1646568).

Almost surely, 2^20012245 is an apocalyptic number.

It is an amenable number.

20012245 is a deficient number, since it is larger than the sum of its proper divisors (6332843).

20012245 is a wasteful number, since it uses less digits than its factorization.

20012245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20012245 is about 4473.5047781354. The cubic root of 20012245 is about 271.4971470973.

Adding to 20012245 its reverse (54221002), we get a palindrome (74233247).

The spelling of 20012245 in words is "twenty million, twelve thousand, two hundred forty-five".