213630419 has 2 divisors, whose sum is σ = 213630420. Its totient is φ = 213630418.

The previous prime is 213630413. The next prime is 213630427. The reversal of 213630419 is 914036312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213630419 - 2⁸ = 213630163 is a prime.

It is a super-2 number, since 2×213630419² = 91275911844231122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213630391 and 213630400.

It is not a weakly prime, because it can be changed into another prime (213630413) 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, 106815209 + 106815210.

It is an arithmetic number, because the mean of its divisors is an integer number (106815210).

Almost surely, 2^213630419 is an apocalyptic number.

213630419 is a deficient number, since it is larger than the sum of its proper divisors (1).

213630419 is an equidigital number, since it uses as much as digits as its factorization.

213630419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 213630419 is about 14616.1013611702. The cubic root of 213630419 is about 597.7978711204.

The spelling of 213630419 in words is "two hundred thirteen million, six hundred thirty thousand, four hundred nineteen".