521241 has 8 divisors (see below), whose sum is σ = 794304. Its totient is φ = 297840.

The previous prime is 521231. The next prime is 521243. The reversal of 521241 is 142125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 521241 - 2⁶ = 521177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 521241.

It is not an unprimeable number, because it can be changed into a prime (521243) 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 7 ways as a sum of consecutive naturals, for example, 12390 + ... + 12431.

It is an arithmetic number, because the mean of its divisors is an integer number (99288).

2⁵²¹²⁴¹ is an apocalyptic number.

It is an amenable number.

521241 is a deficient number, since it is larger than the sum of its proper divisors (273063).

521241 is a wasteful number, since it uses less digits than its factorization.

521241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24831.

The product of its digits is 80, while the sum is 15.

The square root of 521241 is about 721.9702209925. The cubic root of 521241 is about 80.4784351273.

Adding to 521241 its reverse (142125), we get a palindrome (663366).

It can be divided in two parts, 52124 and 1, that added together give a palindrome (52125).

The spelling of 521241 in words is "five hundred twenty-one thousand, two hundred forty-one".