521106 has 8 divisors (see below), whose sum is σ = 1042224. Its totient is φ = 173700.

The previous prime is 521063. The next prime is 521107. The reversal of 521106 is 601125.

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

521106 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 521106.

It is not an unprimeable number, because it can be changed into a prime (521107) 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, 43420 + ... + 43431.

It is an arithmetic number, because the mean of its divisors is an integer number (130278).

2⁵²¹¹⁰⁶ is an apocalyptic number.

521106 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521106 is a wasteful number, since it uses less digits than its factorization.

521106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86856.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 521106 is about 721.8767207772. The cubic root of 521106 is about 80.4714866289.

The spelling of 521106 in words is "five hundred twenty-one thousand, one hundred six".