213144341 has 4 divisors (see below), whose sum is σ = 213619500. Its totient is φ = 212669184.

The previous prime is 213144331. The next prime is 213144361. The reversal of 213144341 is 143441312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79834225 + 133310116 = 8935^2 + 11546^2 .

It is a cyclic number.

It is not a de Polignac number, because 213144341 - 2¹⁰ = 213143317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213144311) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 236906 + ... + 237803.

It is an arithmetic number, because the mean of its divisors is an integer number (53404875).

Almost surely, 2^213144341 is an apocalyptic number.

It is an amenable number.

213144341 is a deficient number, since it is larger than the sum of its proper divisors (475159).

213144341 is an equidigital number, since it uses as much as digits as its factorization.

213144341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475158.

The product of its digits is 1152, while the sum is 23.

The square root of 213144341 is about 14599.4637230276. The cubic root of 213144341 is about 597.3441325893.

Adding to 213144341 its reverse (143441312), we get a palindrome (356585653).

The spelling of 213144341 in words is "two hundred thirteen million, one hundred forty-four thousand, three hundred forty-one".