210000019 has 8 divisors (see below), whose sum is σ = 213081840. Its totient is φ = 206939136.

The previous prime is 210000017. The next prime is 210000023. The reversal of 210000019 is 910000012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210000019 - 2¹ = 210000017 is a prime.

It is a super-2 number, since 2×210000019² = 88200015960000722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 209999963 and 210000008.

It is not an unprimeable number, because it can be changed into a prime (210000017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15567 + ... + 25735.

It is an arithmetic number, because the mean of its divisors is an integer number (26635230).

Almost surely, 2^210000019 is an apocalyptic number.

210000019 is a deficient number, since it is larger than the sum of its proper divisors (3081821).

210000019 is a wasteful number, since it uses less digits than its factorization.

210000019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10469.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 210000019 is about 14491.3774017517. The cubic root of 210000019 is about 594.3922132024.

The spelling of 210000019 in words is "two hundred ten million, nineteen", and thus it is an aban number.