214431 has 8 divisors (see below), whose sum is σ = 326784. Its totient is φ = 122520.

The previous prime is 214399. The next prime is 214433. The reversal of 214431 is 134412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 214431 - 2⁵ = 214399 is a prime.

It is a super-2 number, since 2×214431² = 91961307522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 214431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5085 + ... + 5126.

It is an arithmetic number, because the mean of its divisors is an integer number (40848).

2²¹⁴⁴³¹ is an apocalyptic number.

214431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

214431 is a deficient number, since it is larger than the sum of its proper divisors (112353).

214431 is a wasteful number, since it uses less digits than its factorization.

214431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10221.

The product of its digits is 96, while the sum is 15.

The square root of 214431 is about 463.0669498032. The cubic root of 214431 is about 59.8543690352.

Adding to 214431 its reverse (134412), we get a palindrome (348843).

The spelling of 214431 in words is "two hundred fourteen thousand, four hundred thirty-one".