214245215 has 4 divisors (see below), whose sum is σ = 257094264. Its totient is φ = 171396168.

The previous prime is 214245211. The next prime is 214245257. The reversal of 214245215 is 512542412.

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

It is a cyclic number.

It is not a de Polignac number, because 214245215 - 2² = 214245211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214245211) 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, 21424517 + ... + 21424526.

It is an arithmetic number, because the mean of its divisors is an integer number (64273566).

Almost surely, 2^214245215 is an apocalyptic number.

214245215 is a deficient number, since it is larger than the sum of its proper divisors (42849049).

214245215 is an equidigital number, since it uses as much as digits as its factorization.

214245215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42849048.

The product of its digits is 3200, while the sum is 26.

The square root of 214245215 is about 14637.1177149055. The cubic root of 214245215 is about 598.3707791439.

Adding to 214245215 its reverse (512542412), we get a palindrome (726787627).

The spelling of 214245215 in words is "two hundred fourteen million, two hundred forty-five thousand, two hundred fifteen".