212085455 has 8 divisors (see below), whose sum is σ = 269473392. Its totient is φ = 159687808.

The previous prime is 212085451. The next prime is 212085473. The reversal of 212085455 is 554580212.

212085455 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 212085455 - 2² = 212085451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212085451) 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, 1247477 + ... + 1247646.

It is an arithmetic number, because the mean of its divisors is an integer number (33684174).

Almost surely, 2^212085455 is an apocalyptic number.

212085455 is a deficient number, since it is larger than the sum of its proper divisors (57387937).

212085455 is a wasteful number, since it uses less digits than its factorization.

212085455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495145.

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 212085455 is about 14563.1540196484. The cubic root of 212085455 is about 596.3533021911.

The spelling of 212085455 in words is "two hundred twelve million, eighty-five thousand, four hundred fifty-five".