212031065 has 8 divisors (see below), whose sum is σ = 260354688. Its totient is φ = 165679920.

The previous prime is 212031047. The next prime is 212031067. The reversal of 212031065 is 560130212.

212031065 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 not a de Polignac number, because 212031065 - 2⁸ = 212030809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212031067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492881 + ... + 493310.

It is an arithmetic number, because the mean of its divisors is an integer number (32544336).

Almost surely, 2^212031065 is an apocalyptic number.

It is an amenable number.

212031065 is a deficient number, since it is larger than the sum of its proper divisors (48323623).

212031065 is an equidigital number, since it uses as much as digits as its factorization.

212031065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986239.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 212031065 is about 14561.2865159642. The cubic root of 212031065 is about 596.3023189224.

Adding to 212031065 its reverse (560130212), we get a palindrome (772161277).

The spelling of 212031065 in words is "two hundred twelve million, thirty-one thousand, sixty-five".