213460019 has 2 divisors, whose sum is σ = 213460020. Its totient is φ = 213460018.

The previous prime is 213459989. The next prime is 213460021. The reversal of 213460019 is 910064312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213460019 - 2²⁴ = 196682803 is a prime.

It is a super-2 number, since 2×213460019² = 91130359422960722, which contains 22 as substring.

Together with 213460021, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213460019.

It is not a weakly prime, because it can be changed into another prime (213460069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106730009 + 106730010.

It is an arithmetic number, because the mean of its divisors is an integer number (106730010).

Almost surely, 2^213460019 is an apocalyptic number.

213460019 is a deficient number, since it is larger than the sum of its proper divisors (1).

213460019 is an equidigital number, since it uses as much as digits as its factorization.

213460019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 213460019 is about 14610.2710104912. The cubic root of 213460019 is about 597.6388865003.

The spelling of 213460019 in words is "two hundred thirteen million, four hundred sixty thousand, nineteen".