214245643 has 2 divisors, whose sum is σ = 214245644. Its totient is φ = 214245642.

The previous prime is 214245631. The next prime is 214245673. The reversal of 214245643 is 346542412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214245643 is a prime.

It is not a weakly prime, because it can be changed into another prime (214245613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107122821 + 107122822.

It is an arithmetic number, because the mean of its divisors is an integer number (107122822).

Almost surely, 2^214245643 is an apocalyptic number.

214245643 is a deficient number, since it is larger than the sum of its proper divisors (1).

214245643 is an equidigital number, since it uses as much as digits as its factorization.

214245643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 31.

The square root of 214245643 is about 14637.1323352629. The cubic root of 214245643 is about 598.3711776010.

The spelling of 214245643 in words is "two hundred fourteen million, two hundred forty-five thousand, six hundred forty-three".