212052387 has 16 divisors (see below), whose sum is σ = 299439360. Its totient is φ = 133200672.

The previous prime is 212052377. The next prime is 212052403. The reversal of 212052387 is 783250212.

212052387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212052387 - 2⁷ = 212052259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212052377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18312 + ... + 27557.

It is an arithmetic number, because the mean of its divisors is an integer number (18714960).

Almost surely, 2^212052387 is an apocalyptic number.

212052387 is a deficient number, since it is larger than the sum of its proper divisors (87386973).

212052387 is a wasteful number, since it uses less digits than its factorization.

212052387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45962.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 212052387 is about 14562.0186444050. The cubic root of 212052387 is about 596.3223064525.

The spelling of 212052387 in words is "two hundred twelve million, fifty-two thousand, three hundred eighty-seven".