213395865 has 8 divisors (see below), whose sum is σ = 341433408. Its totient is φ = 113811120.

The previous prime is 213395843. The next prime is 213395879. The reversal of 213395865 is 568593312.

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

It is not a de Polignac number, because 213395865 - 2⁶ = 213395801 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7113181 + ... + 7113210.

It is an arithmetic number, because the mean of its divisors is an integer number (42679176).

Almost surely, 2^213395865 is an apocalyptic number.

It is an amenable number.

213395865 is a deficient number, since it is larger than the sum of its proper divisors (128037543).

213395865 is a wasteful number, since it uses less digits than its factorization.

213395865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14226399.

The product of its digits is 194400, while the sum is 42.

The square root of 213395865 is about 14608.0753352384. The cubic root of 213395865 is about 597.5790083602.

The spelling of 213395865 in words is "two hundred thirteen million, three hundred ninety-five thousand, eight hundred sixty-five".