204135215241 has 8 divisors (see below), whose sum is σ = 278510061280. Its totient is φ = 132925256352.

The previous prime is 204135215231. The next prime is 204135215261. The reversal of 204135215241 is 142512531402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204135215241 - 2¹⁴ = 204135198857 is a prime.

It is a super-2 number, since 2×204135215241² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204135215199 and 204135215208.

It is not an unprimeable number, because it can be changed into a prime (204135215201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791221636 + ... + 791221893.

It is an arithmetic number, because the mean of its divisors is an integer number (34813757660).

Almost surely, 2^204135215241 is an apocalyptic number.

It is an amenable number.

204135215241 is a deficient number, since it is larger than the sum of its proper divisors (74374846039).

204135215241 is a wasteful number, since it uses less digits than its factorization.

204135215241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582443575.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 204135215241 its reverse (142512531402), we get a palindrome (346647746643).

The spelling of 204135215241 in words is "two hundred four billion, one hundred thirty-five million, two hundred fifteen thousand, two hundred forty-one".