521201041 has 2 divisors, whose sum is σ = 521201042. Its totient is φ = 521201040.

The previous prime is 521201033. The next prime is 521201069. The reversal of 521201041 is 140102125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 478690641 + 42510400 = 21879^2 + 6520^2 .

It is a cyclic number.

It is not a de Polignac number, because 521201041 - 2³ = 521201033 is a prime.

It is not a weakly prime, because it can be changed into another prime (521201341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260600520 + 260600521.

It is an arithmetic number, because the mean of its divisors is an integer number (260600521).

Almost surely, 2^521201041 is an apocalyptic number.

It is an amenable number.

521201041 is a deficient number, since it is larger than the sum of its proper divisors (1).

521201041 is an equidigital number, since it uses as much as digits as its factorization.

521201041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 521201041 is about 22829.8278793337. The cubic root of 521201041 is about 804.7637854829.

Adding to 521201041 its reverse (140102125), we get a palindrome (661303166).

The spelling of 521201041 in words is "five hundred twenty-one million, two hundred one thousand, forty-one".