212528 has 20 divisors (see below), whose sum is σ = 424080. Its totient is φ = 103104.

The previous prime is 212507. The next prime is 212557. The reversal of 212528 is 825212.

212528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 212528.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413 + ... + 771.

It is an arithmetic number, because the mean of its divisors is an integer number (21204).

2²¹²⁵²⁸ is an apocalyptic number.

It is an amenable number.

212528 is a deficient number, since it is larger than the sum of its proper divisors (211552).

212528 is a wasteful number, since it uses less digits than its factorization.

212528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 398 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 212528 is about 461.0075921284. The cubic root of 212528 is about 59.6767804640.

The spelling of 212528 in words is "two hundred twelve thousand, five hundred twenty-eight".