212534 has 32 divisors (see below), whose sum is σ = 414720. Its totient is φ = 79488.

The previous prime is 212507. The next prime is 212557. The reversal of 212534 is 435212.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 212534.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4499 + ... + 4545.

It is an arithmetic number, because the mean of its divisors is an integer number (12960).

2²¹²⁵³⁴ is an apocalyptic number.

212534 is a deficient number, since it is larger than the sum of its proper divisors (202186).

212534 is a wasteful number, since it uses less digits than its factorization.

212534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92.

The product of its digits is 240, while the sum is 17.

The square root of 212534 is about 461.0140995675. The cubic root of 212534 is about 59.6773420485.

Adding to 212534 its reverse (435212), we get a palindrome (647746).

The spelling of 212534 in words is "two hundred twelve thousand, five hundred thirty-four".