213025812 has 12 divisors (see below), whose sum is σ = 497060256. Its totient is φ = 71008600.

The previous prime is 213025789. The next prime is 213025823. The reversal of 213025812 is 218520312.

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, 8876064 + ... + 8876087.

It is an arithmetic number, because the mean of its divisors is an integer number (41421688).

Almost surely, 2^213025812 is an apocalyptic number.

It is an amenable number.

213025812 is an abundant number, since it is smaller than the sum of its proper divisors (284034444).

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

213025812 is a wasteful number, since it uses less digits than its factorization.

213025812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17752158 (or 17752156 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 213025812 is about 14595.4037970863. The cubic root of 213025812 is about 597.2333848979.

The spelling of 213025812 in words is "two hundred thirteen million, twenty-five thousand, eight hundred twelve".