520144201 has 4 divisors (see below), whose sum is σ = 523941012. Its totient is φ = 516347392.

The previous prime is 520144181. The next prime is 520144259. The reversal of 520144201 is 102441025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 299324601 + 220819600 = 17301^2 + 14860^2 .

It is a cyclic number.

It is not a de Polignac number, because 520144201 - 2⁵ = 520144169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520144271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1898200 + ... + 1898473.

It is an arithmetic number, because the mean of its divisors is an integer number (130985253).

Almost surely, 2^520144201 is an apocalyptic number.

It is an amenable number.

520144201 is a deficient number, since it is larger than the sum of its proper divisors (3796811).

520144201 is a wasteful number, since it uses less digits than its factorization.

520144201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796810.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 520144201 is about 22806.6700988987. The cubic root of 520144201 is about 804.2194772421.

Adding to 520144201 its reverse (102441025), we get a palindrome (622585226).

The spelling of 520144201 in words is "five hundred twenty million, one hundred forty-four thousand, two hundred one".