214491919 has 2 divisors, whose sum is σ = 214491920. Its totient is φ = 214491918.

The previous prime is 214491913. The next prime is 214491971. The reversal of 214491919 is 919194412.

214491919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 214491919 - 2³ = 214491911 is a prime.

It is a super-4 number, since 4×214491919⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214491911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107245959 + 107245960.

It is an arithmetic number, because the mean of its divisors is an integer number (107245960).

Almost surely, 2^214491919 is an apocalyptic number.

214491919 is a deficient number, since it is larger than the sum of its proper divisors (1).

214491919 is an equidigital number, since it uses as much as digits as its factorization.

214491919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 40.

The square root of 214491919 is about 14645.5426324872. The cubic root of 214491919 is about 598.6003662849.

The spelling of 214491919 in words is "two hundred fourteen million, four hundred ninety-one thousand, nine hundred nineteen".