213115205 has 8 divisors (see below), whose sum is σ = 256195872. Its totient is φ = 170187088.

The previous prime is 213115187. The next prime is 213115211. The reversal of 213115205 is 502511312.

It is a happy number.

213115205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-213115205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35039 + ... + 40668.

It is an arithmetic number, because the mean of its divisors is an integer number (32024484).

Almost surely, 2^213115205 is an apocalyptic number.

It is an amenable number.

213115205 is a deficient number, since it is larger than the sum of its proper divisors (43080667).

213115205 is an equidigital number, since it uses as much as digits as its factorization.

213115205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76275.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 213115205 is about 14598.4658440536. The cubic root of 213115205 is about 597.3169131447.

Adding to 213115205 its reverse (502511312), we get a palindrome (715626517).

The spelling of 213115205 in words is "two hundred thirteen million, one hundred fifteen thousand, two hundred five".