213025305 has 8 divisors (see below), whose sum is σ = 340840512. Its totient is φ = 113613488.

The previous prime is 213025297. The next prime is 213025331. The reversal of 213025305 is 503520312.

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 213025305 - 2³ = 213025297 is a prime.

It is an unprimeable number.

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, 7100829 + ... + 7100858.

It is an arithmetic number, because the mean of its divisors is an integer number (42605064).

Almost surely, 2^213025305 is an apocalyptic number.

It is an amenable number.

213025305 is a deficient number, since it is larger than the sum of its proper divisors (127815207).

213025305 is a wasteful number, since it uses less digits than its factorization.

213025305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14201695.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 213025305 is about 14595.3864285945. The cubic root of 213025305 is about 597.2329110937.

Adding to 213025305 its reverse (503520312), we get a palindrome (716545617).

The spelling of 213025305 in words is "two hundred thirteen million, twenty-five thousand, three hundred five".