214222545 has 24 divisors (see below), whose sum is σ = 377411112. Its totient is φ = 112377600.

The previous prime is 214222543. The next prime is 214222571. The reversal of 214222545 is 545222412.

It can be written as a sum of positive squares in 4 ways, for example, as 8242641 + 205979904 = 2871^2 + 14352^2 .

It is not a de Polignac number, because 214222545 - 2¹ = 214222543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214222543) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 36276 + ... + 41765.

It is an arithmetic number, because the mean of its divisors is an integer number (15725463).

Almost surely, 2^214222545 is an apocalyptic number.

It is an amenable number.

214222545 is a deficient number, since it is larger than the sum of its proper divisors (163188567).

214222545 is a wasteful number, since it uses less digits than its factorization.

214222545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78113 (or 78110 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 214222545 is about 14636.3432933230. The cubic root of 214222545 is about 598.3496731976.

Adding to 214222545 its reverse (545222412), we get a palindrome (759444957).

The spelling of 214222545 in words is "two hundred fourteen million, two hundred twenty-two thousand, five hundred forty-five".