20200201 has 6 divisors (see below), whose sum is σ = 23498250. Its totient is φ = 17314416.

The previous prime is 20200181. The next prime is 20200223. The reversal of 20200201 is 10200202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11055625 + 9144576 = 3325^2 + 3024^2 .

It is not a de Polignac number, because 20200201 - 2¹⁹ = 19675913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206076 + ... + 206173.

It is an arithmetic number, because the mean of its divisors is an integer number (3916375).

Almost surely, 2^20200201 is an apocalyptic number.

It is an amenable number.

20200201 is a deficient number, since it is larger than the sum of its proper divisors (3298049).

20200201 is an equidigital number, since it uses as much as digits as its factorization.

20200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412263 (or 412256 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 20200201 is about 4494.4633717497. The cubic root of 20200201 is about 272.3444714717.

Adding to 20200201 its reverse (10200202), we get a palindrome (30400403).

Subtracting from 20200201 its reverse (10200202), we obtain a palindrome (9999999).

The spelling of 20200201 in words is "twenty million, two hundred thousand, two hundred one".