213305241 has 16 divisors (see below), whose sum is σ = 293616576. Its totient is φ = 137657856.

The previous prime is 213305221. The next prime is 213305251. The reversal of 213305241 is 142503312.

It is not a de Polignac number, because 213305241 - 2⁶ = 213305177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213305201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7261 + ... + 21893.

It is an arithmetic number, because the mean of its divisors is an integer number (18351036).

Almost surely, 2^213305241 is an apocalyptic number.

It is an amenable number.

213305241 is a deficient number, since it is larger than the sum of its proper divisors (80311335).

213305241 is a wasteful number, since it uses less digits than its factorization.

213305241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14792.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 213305241 is about 14604.9731598521. The cubic root of 213305241 is about 597.4944039905.

Adding to 213305241 its reverse (142503312), we get a palindrome (355808553).

The spelling of 213305241 in words is "two hundred thirteen million, three hundred five thousand, two hundred forty-one".