521227 has 8 divisors (see below), whose sum is σ = 627200. Its totient is φ = 423144.

The previous prime is 521201. The next prime is 521231. The reversal of 521227 is 722125.

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

It is a cyclic number.

It is not a de Polignac number, because 521227 - 2¹⁵ = 488459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (521267) 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, 1827 + ... + 2092.

It is an arithmetic number, because the mean of its divisors is an integer number (78400).

2⁵²¹²²⁷ is an apocalyptic number.

521227 is a deficient number, since it is larger than the sum of its proper divisors (105973).

521227 is a wasteful number, since it uses less digits than its factorization.

521227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3945.

The product of its digits is 280, while the sum is 19.

The square root of 521227 is about 721.9605252367. The cubic root of 521227 is about 80.4777145981.

The spelling of 521227 in words is "five hundred twenty-one thousand, two hundred twenty-seven".