212515332 has 12 divisors (see below), whose sum is σ = 495869136. Its totient is φ = 70838440.

The previous prime is 212515321. The next prime is 212515343. The reversal of 212515332 is 233515212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212515321) and next prime (212515343).

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

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, 8854794 + ... + 8854817.

It is an arithmetic number, because the mean of its divisors is an integer number (41322428).

Almost surely, 2^212515332 is an apocalyptic number.

It is an amenable number.

212515332 is an abundant number, since it is smaller than the sum of its proper divisors (283353804).

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

212515332 is a wasteful number, since it uses less digits than its factorization.

212515332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17709618 (or 17709616 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 212515332 is about 14577.9056108894. The cubic root of 212515332 is about 596.7559473709.

The spelling of 212515332 in words is "two hundred twelve million, five hundred fifteen thousand, three hundred thirty-two".