212163785 has 8 divisors (see below), whose sum is σ = 267996480. Its totient is φ = 160797744.

The previous prime is 212163779. The next prime is 212163851. The reversal of 212163785 is 587361212.

It is a happy number.

212163785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212163785 - 2¹⁴ = 212147401 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116557 + ... + 1116746.

It is an arithmetic number, because the mean of its divisors is an integer number (33499560).

Almost surely, 2^212163785 is an apocalyptic number.

It is an amenable number.

212163785 is a deficient number, since it is larger than the sum of its proper divisors (55832695).

212163785 is a wasteful number, since it uses less digits than its factorization.

212163785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233327.

The product of its digits is 20160, while the sum is 35.

The square root of 212163785 is about 14565.8430926603. The cubic root of 212163785 is about 596.4267106584.

The spelling of 212163785 in words is "two hundred twelve million, one hundred sixty-three thousand, seven hundred eighty-five".