214645855 has 4 divisors (see below), whose sum is σ = 257575032. Its totient is φ = 171716680.

The previous prime is 214645853. The next prime is 214645861. The reversal of 214645855 is 558546412.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 214645855 - 2¹ = 214645853 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214645853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21464581 + ... + 21464590.

It is an arithmetic number, because the mean of its divisors is an integer number (64393758).

Almost surely, 2^214645855 is an apocalyptic number.

214645855 is a deficient number, since it is larger than the sum of its proper divisors (42929177).

214645855 is an equidigital number, since it uses as much as digits as its factorization.

214645855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42929176.

The product of its digits is 192000, while the sum is 40.

The square root of 214645855 is about 14650.7970772924. The cubic root of 214645855 is about 598.7435326902.

The spelling of 214645855 in words is "two hundred fourteen million, six hundred forty-five thousand, eight hundred fifty-five".