212523208 has 32 divisors (see below), whose sum is σ = 420235200. Its totient is φ = 100481472.

The previous prime is 212523191. The next prime is 212523211. The reversal of 212523208 is 802325212.

It is a super-2 number, since 2×212523208² = 90332227877222528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114141 + ... + 115987.

It is an arithmetic number, because the mean of its divisors is an integer number (13132350).

Almost surely, 2^212523208 is an apocalyptic number.

It is an amenable number.

212523208 is a deficient number, since it is larger than the sum of its proper divisors (207711992).

212523208 is a wasteful number, since it uses less digits than its factorization.

212523208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629 (or 2625 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 212523208 is about 14578.1757432129. The cubic root of 212523208 is about 596.7633193751.

The spelling of 212523208 in words is "two hundred twelve million, five hundred twenty-three thousand, two hundred eight".