212003534 has 8 divisors (see below), whose sum is σ = 322361760. Its totient is φ = 104549616.

The previous prime is 212003509. The next prime is 212003563. The reversal of 212003534 is 435300212.

It is a happy number.

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

It is a congruent number.

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, 725894 + ... + 726185.

It is an arithmetic number, because the mean of its divisors is an integer number (40295220).

Almost surely, 2^212003534 is an apocalyptic number.

212003534 is a deficient number, since it is larger than the sum of its proper divisors (110358226).

212003534 is a wasteful number, since it uses less digits than its factorization.

212003534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452154.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 212003534 is about 14560.3411361135. The cubic root of 212003534 is about 596.2765090098.

Adding to 212003534 its reverse (435300212), we get a palindrome (647303746).

The spelling of 212003534 in words is "two hundred twelve million, three thousand, five hundred thirty-four".