20200245 has 16 divisors (see below), whose sum is σ = 34806912. Its totient is φ = 9944640.

The previous prime is 20200237. The next prime is 20200253. The reversal of 20200245 is 54200202.

It is an interprime number because it is at equal distance from previous prime (20200237) and next prime (20200253).

It is not a de Polignac number, because 20200245 - 2³ = 20200237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 51601 + ... + 51990.

It is an arithmetic number, because the mean of its divisors is an integer number (2175432).

Almost surely, 2^20200245 is an apocalyptic number.

It is an amenable number.

20200245 is a deficient number, since it is larger than the sum of its proper divisors (14606667).

20200245 is a wasteful number, since it uses less digits than its factorization.

20200245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103612.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 20200245 is about 4494.4682666585. The cubic root of 20200245 is about 272.3446692114.

Adding to 20200245 its reverse (54200202), we get a palindrome (74400447).

The spelling of 20200245 in words is "twenty million, two hundred thousand, two hundred forty-five".