214243331 has 4 divisors (see below), whose sum is σ = 218285712. Its totient is φ = 210200952.

The previous prime is 214243313. The next prime is 214243349. The reversal of 214243331 is 133342412.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (214243313) and next prime (214243349).

It is a cyclic number.

It is not a de Polignac number, because 214243331 - 2²⁶ = 147134467 is a prime.

It is a super-2 number, since 2×214243331² = 91800409755951122, 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 = 214243297 and 214243306.

It is not an unprimeable number, because it can be changed into a prime (214243301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021111 + ... + 2021216.

It is an arithmetic number, because the mean of its divisors is an integer number (54571428).

Almost surely, 2^214243331 is an apocalyptic number.

214243331 is a deficient number, since it is larger than the sum of its proper divisors (4042381).

214243331 is an equidigital number, since it uses as much as digits as its factorization.

214243331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4042380.

The product of its digits is 1728, while the sum is 23.

The square root of 214243331 is about 14637.0533578313. The cubic root of 214243331 is about 598.3690251820.

Adding to 214243331 its reverse (133342412), we get a palindrome (347585743).

The spelling of 214243331 in words is "two hundred fourteen million, two hundred forty-three thousand, three hundred thirty-one".