214430291 has 2 divisors, whose sum is σ = 214430292. Its totient is φ = 214430290.

The previous prime is 214430243. The next prime is 214430303. The reversal of 214430291 is 192034412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214430291 - 2¹⁸ = 214168147 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 214430291.

It is not a weakly prime, because it can be changed into another prime (214430201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107215145 + 107215146.

It is an arithmetic number, because the mean of its divisors is an integer number (107215146).

Almost surely, 2^214430291 is an apocalyptic number.

214430291 is a deficient number, since it is larger than the sum of its proper divisors (1).

214430291 is an equidigital number, since it uses as much as digits as its factorization.

214430291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 214430291 is about 14643.4384964734. The cubic root of 214430291 is about 598.5430306717.

The spelling of 214430291 in words is "two hundred fourteen million, four hundred thirty thousand, two hundred ninety-one".