212618652 has 12 divisors (see below), whose sum is σ = 496110216. Its totient is φ = 70872880.

The previous prime is 212618641. The next prime is 212618689. The reversal of 212618652 is 256816212.

212618652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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, 8859099 + ... + 8859122.

It is an arithmetic number, because the mean of its divisors is an integer number (41342518).

Almost surely, 2^212618652 is an apocalyptic number.

It is an amenable number.

212618652 is an abundant number, since it is smaller than the sum of its proper divisors (283491564).

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

212618652 is a wasteful number, since it uses less digits than its factorization.

212618652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17718228 (or 17718226 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 212618652 is about 14581.4488992007. The cubic root of 212618652 is about 596.8526413123.

The spelling of 212618652 in words is "two hundred twelve million, six hundred eighteen thousand, six hundred fifty-two".