213013019 has 4 divisors (see below), whose sum is σ = 213111744. Its totient is φ = 212914296.

The previous prime is 213012991. The next prime is 213013049. The reversal of 213013019 is 910310312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213013019 - 2⁸ = 213012763 is a prime.

It is a super-2 number, since 2×213013019² = 90749092526988722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213013049) 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 in 3 ways as a sum of consecutive naturals, for example, 46052 + ... + 50465.

It is an arithmetic number, because the mean of its divisors is an integer number (53277936).

Almost surely, 2^213013019 is an apocalyptic number.

213013019 is a deficient number, since it is larger than the sum of its proper divisors (98725).

213013019 is an equidigital number, since it uses as much as digits as its factorization.

213013019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98724.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 213013019 is about 14594.9655361018. The cubic root of 213013019 is about 597.2214292893.

The spelling of 213013019 in words is "two hundred thirteen million, thirteen thousand, nineteen".