214543231 has 16 divisors (see below), whose sum is σ = 258624000. Its totient is φ = 173860128.

The previous prime is 214543159. The next prime is 214543237. The reversal of 214543231 is 132345412.

It is a cyclic number.

It is not a de Polignac number, because 214543231 - 2¹³ = 214535039 is a prime.

It is a super-2 number, since 2×214543231² = 92057595935838722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214543196 and 214543205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214543237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78321 + ... + 81013.

It is an arithmetic number, because the mean of its divisors is an integer number (16164000).

Almost surely, 2^214543231 is an apocalyptic number.

214543231 is a deficient number, since it is larger than the sum of its proper divisors (44080769).

214543231 is a wasteful number, since it uses less digits than its factorization.

214543231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3318.

The product of its digits is 2880, while the sum is 25.

The square root of 214543231 is about 14647.2943235261. The cubic root of 214543231 is about 598.6480960287.

Adding to 214543231 its reverse (132345412), we get a palindrome (346888643).

The spelling of 214543231 in words is "two hundred fourteen million, five hundred forty-three thousand, two hundred thirty-one".