212741285 has 8 divisors (see below), whose sum is σ = 256586616. Its totient is φ = 169328320.

The previous prime is 212741261. The next prime is 212741293. The reversal of 212741285 is 582147212.

212741285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 97436641 + 115304644 = 9871^2 + 10738^2 .

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

It is not a de Polignac number, because 212741285 - 2¹⁴ = 212724901 is a prime.

It is a Duffinian number.

It is a congruent 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, 107006 + ... + 108975.

It is an arithmetic number, because the mean of its divisors is an integer number (32073327).

Almost surely, 2^212741285 is an apocalyptic number.

It is an amenable number.

212741285 is a deficient number, since it is larger than the sum of its proper divisors (43845331).

212741285 is a wasteful number, since it uses less digits than its factorization.

212741285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216183.

The product of its digits is 8960, while the sum is 32.

The square root of 212741285 is about 14585.6533964029. The cubic root of 212741285 is about 596.9673690367.

Adding to 212741285 its reverse (582147212), we get a palindrome (794888497).

The spelling of 212741285 in words is "two hundred twelve million, seven hundred forty-one thousand, two hundred eighty-five".