214405234991 has 2 divisors, whose sum is σ = 214405234992. Its totient is φ = 214405234990.

The previous prime is 214405234919. The next prime is 214405235003. The reversal of 214405234991 is 199432504412.

214405234991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (214405234919) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214405234991 - 2²² = 214401040687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214405234291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107202617495 + 107202617496.

It is an arithmetic number, because the mean of its divisors is an integer number (107202617496).

Almost surely, 2^214405234991 is an apocalyptic number.

214405234991 is a deficient number, since it is larger than the sum of its proper divisors (1).

214405234991 is an equidigital number, since it uses as much as digits as its factorization.

214405234991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 214405234991 in words is "two hundred fourteen billion, four hundred five million, two hundred thirty-four thousand, nine hundred ninety-one".