521348 has 6 divisors (see below), whose sum is σ = 912366. Its totient is φ = 260672.

The previous prime is 521329. The next prime is 521357. The reversal of 521348 is 843125.

It can be written as a sum of positive squares in only one way, i.e., 521284 + 64 = 722^2 + 8^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 521348.

It is an unprimeable number.

521348 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65165 + ... + 65172.

It is an arithmetic number, because the mean of its divisors is an integer number (152061).

2⁵²¹³⁴⁸ is an apocalyptic number.

It is an amenable number.

521348 is a deficient number, since it is larger than the sum of its proper divisors (391018).

521348 is a wasteful number, since it uses less digits than its factorization.

521348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130341 (or 130339 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 521348 is about 722.0443199693. The cubic root of 521348 is about 80.4839416035.

The spelling of 521348 in words is "five hundred twenty-one thousand, three hundred forty-eight".