214543145 has 16 divisors (see below), whose sum is σ = 275416848. Its totient is φ = 159866880.

The previous prime is 214543139. The next prime is 214543151. The reversal of 214543145 is 541345412.

214543145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (214543139) and next prime (214543151).

It can be written as a sum of positive squares in 8 ways, for example, as 29800681 + 184742464 = 5459^2 + 13592^2 .

It is not a de Polignac number, because 214543145 - 2¹⁰ = 214542121 is a prime.

It is a super-2 number, since 2×214543145² = 92057522132982050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4766 + ... + 21255.

It is an arithmetic number, because the mean of its divisors is an integer number (17213553).

Almost surely, 2^214543145 is an apocalyptic number.

It is an amenable number.

214543145 is a deficient number, since it is larger than the sum of its proper divisors (60873703).

214543145 is a wasteful number, since it uses less digits than its factorization.

214543145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26140.

The product of its digits is 9600, while the sum is 29.

The square root of 214543145 is about 14647.2913878300. The cubic root of 214543145 is about 598.6480160390.

Adding to 214543145 its reverse (541345412), we get a palindrome (755888557).

The spelling of 214543145 in words is "two hundred fourteen million, five hundred forty-three thousand, one hundred forty-five".