213130241 has 8 divisors (see below), whose sum is σ = 225960840. Its totient is φ = 200332288.

The previous prime is 213130237. The next prime is 213130261. The reversal of 213130241 is 142031312.

It can be written as a sum of positive squares in 4 ways, for example, as 162307600 + 50822641 = 12740^2 + 7129^2 .

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 213130241 - 2² = 213130237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213130261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6005 + ... + 21501.

It is an arithmetic number, because the mean of its divisors is an integer number (28245105).

Almost surely, 2^213130241 is an apocalyptic number.

It is an amenable number.

213130241 is a deficient number, since it is larger than the sum of its proper divisors (12830599).

213130241 is a wasteful number, since it uses less digits than its factorization.

213130241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16323.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 213130241 is about 14598.9808205916. The cubic root of 213130241 is about 597.3309603919.

Adding to 213130241 its reverse (142031312), we get a palindrome (355161553).

The spelling of 213130241 in words is "two hundred thirteen million, one hundred thirty thousand, two hundred forty-one".