213999419 has 2 divisors, whose sum is σ = 213999420. Its totient is φ = 213999418.

The previous prime is 213999389. The next prime is 213999421. The reversal of 213999419 is 914999312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213999419 is a prime.

It is a super-3 number, since 3×213999419³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 213999421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213999449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106999709 + 106999710.

It is an arithmetic number, because the mean of its divisors is an integer number (106999710).

Almost surely, 2^213999419 is an apocalyptic number.

213999419 is a deficient number, since it is larger than the sum of its proper divisors (1).

213999419 is an equidigital number, since it uses as much as digits as its factorization.

213999419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157464, while the sum is 47.

The square root of 213999419 is about 14628.7189801431. The cubic root of 213999419 is about 598.1418616620.

The spelling of 213999419 in words is "two hundred thirteen million, nine hundred ninety-nine thousand, four hundred nineteen".