213804071 has 8 divisors (see below), whose sum is σ = 231777504. Its totient is φ = 196048800.

The previous prime is 213804061. The next prime is 213804089. The reversal of 213804071 is 170408312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213804071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213804071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213804011) 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, 52496 + ... + 56421.

It is an arithmetic number, because the mean of its divisors is an integer number (28972188).

Almost surely, 2^213804071 is an apocalyptic number.

213804071 is a deficient number, since it is larger than the sum of its proper divisors (17973433).

213804071 is a wasteful number, since it uses less digits than its factorization.

213804071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109081.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 213804071 is about 14622.0405894663. The cubic root of 213804071 is about 597.9598029303.

The spelling of 213804071 in words is "two hundred thirteen million, eight hundred four thousand, seventy-one".