214400231 has 2 divisors, whose sum is σ = 214400232. Its totient is φ = 214400230.

The previous prime is 214400203. The next prime is 214400239. The reversal of 214400231 is 132004412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214400231 - 2¹⁴ = 214383847 is a prime.

It is a super-2 number, since 2×214400231² = 91934918105706722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214400239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107200115 + 107200116.

It is an arithmetic number, because the mean of its divisors is an integer number (107200116).

Almost surely, 2^214400231 is an apocalyptic number.

214400231 is a deficient number, since it is larger than the sum of its proper divisors (1).

214400231 is an equidigital number, since it uses as much as digits as its factorization.

214400231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 214400231 is about 14642.4120622253. The cubic root of 214400231 is about 598.5150603630.

Adding to 214400231 its reverse (132004412), we get a palindrome (346404643).

The spelling of 214400231 in words is "two hundred fourteen million, four hundred thousand, two hundred thirty-one".