214215445 has 16 divisors (see below), whose sum is σ = 270905472. Its totient is φ = 162289600.

The previous prime is 214215439. The next prime is 214215451. The reversal of 214215445 is 544512412.

It is an interprime number because it is at equal distance from previous prime (214215439) and next prime (214215451).

It is not a de Polignac number, because 214215445 - 2²⁷ = 79997717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2394 + ... + 20836.

It is an arithmetic number, because the mean of its divisors is an integer number (16931592).

Almost surely, 2^214215445 is an apocalyptic number.

It is an amenable number.

214215445 is a deficient number, since it is larger than the sum of its proper divisors (56690027).

214215445 is a wasteful number, since it uses less digits than its factorization.

214215445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18572.

The product of its digits is 6400, while the sum is 28.

The square root of 214215445 is about 14636.1007443923. The cubic root of 214215445 is about 598.3430627362.

Adding to 214215445 its reverse (544512412), we get a palindrome (758727857).

The spelling of 214215445 in words is "two hundred fourteen million, two hundred fifteen thousand, four hundred forty-five".