213255241 has 12 divisors (see below), whose sum is σ = 230634180. Its totient is φ = 196935200.

The previous prime is 213255239. The next prime is 213255247. The reversal of 213255241 is 142552312.

It can be written as a sum of positive squares in 2 ways, for example, as 144696841 + 68558400 = 12029^2 + 8280^2 .

It is not a de Polignac number, because 213255241 - 2¹ = 213255239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213255247) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8391 + ... + 22291.

It is an arithmetic number, because the mean of its divisors is an integer number (19219515).

Almost surely, 2^213255241 is an apocalyptic number.

It is an amenable number.

213255241 is a deficient number, since it is larger than the sum of its proper divisors (17378939).

213255241 is a wasteful number, since it uses less digits than its factorization.

213255241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13976 (or 13953 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 213255241 is about 14603.2613138299. The cubic root of 213255241 is about 597.4477149442.

The spelling of 213255241 in words is "two hundred thirteen million, two hundred fifty-five thousand, two hundred forty-one".