214131287 has 2 divisors, whose sum is σ = 214131288. Its totient is φ = 214131286.

The previous prime is 214131223. The next prime is 214131293. The reversal of 214131287 is 782131412.

214131287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214131287 - 2⁶ = 214131223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214131487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107065643 + 107065644.

It is an arithmetic number, because the mean of its divisors is an integer number (107065644).

Almost surely, 2^214131287 is an apocalyptic number.

214131287 is a deficient number, since it is larger than the sum of its proper divisors (1).

214131287 is an equidigital number, since it uses as much as digits as its factorization.

214131287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 29.

The square root of 214131287 is about 14633.2254475902. The cubic root of 214131287 is about 598.2646962249.

Adding to 214131287 its reverse (782131412), we get a palindrome (996262699).

The spelling of 214131287 in words is "two hundred fourteen million, one hundred thirty-one thousand, two hundred eighty-seven".