214508285 has 4 divisors (see below), whose sum is σ = 257409948. Its totient is φ = 171606624.

The previous prime is 214508267. The next prime is 214508293. The reversal of 214508285 is 582805412.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32878756 + 181629529 = 5734^2 + 13477^2 .

It is a cyclic number.

It is not a de Polignac number, because 214508285 - 2⁸ = 214508029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21450824 + ... + 21450833.

It is an arithmetic number, because the mean of its divisors is an integer number (64352487).

Almost surely, 2^214508285 is an apocalyptic number.

It is an amenable number.

214508285 is a deficient number, since it is larger than the sum of its proper divisors (42901663).

214508285 is an equidigital number, since it uses as much as digits as its factorization.

214508285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42901662.

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 214508285 is about 14646.1013583820. The cubic root of 214508285 is about 598.6155905483.

The spelling of 214508285 in words is "two hundred fourteen million, five hundred eight thousand, two hundred eighty-five".