213834019 has 8 divisors (see below), whose sum is σ = 244949600. Its totient is φ = 182860416.

The previous prime is 213834011. The next prime is 213834079. The reversal of 213834019 is 910438312.

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 213834019 - 2³ = 213834011 is a prime.

It is a super-2 number, since 2×213834019² = 91449975363384722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213834011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32244 + ... + 38305.

It is an arithmetic number, because the mean of its divisors is an integer number (30618700).

Almost surely, 2^213834019 is an apocalyptic number.

213834019 is a deficient number, since it is larger than the sum of its proper divisors (31115581).

213834019 is an equidigital number, since it uses as much as digits as its factorization.

213834019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70989.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 213834019 is about 14623.0646240793. The cubic root of 213834019 is about 597.9877208024.

The spelling of 213834019 in words is "two hundred thirteen million, eight hundred thirty-four thousand, nineteen".