204611515241 has 6 divisors (see below), whose sum is σ = 238017476970. Its totient is φ = 175381298736.

The previous prime is 204611515219. The next prime is 204611515243. The reversal of 204611515241 is 142515116402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 127274130025 + 77337385216 = 356755^2 + 278096^2 .

It is a de Polignac number, because none of the positive numbers 2^k-204611515241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204611515198 and 204611515207.

It is not an unprimeable number, because it can be changed into a prime (204611515243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2087872556 + ... + 2087872653.

It is an arithmetic number, because the mean of its divisors is an integer number (39669579495).

Almost surely, 2^204611515241 is an apocalyptic number.

It is an amenable number.

204611515241 is a deficient number, since it is larger than the sum of its proper divisors (33405961729).

204611515241 is an equidigital number, since it uses as much as digits as its factorization.

204611515241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175745223 (or 4175745216 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 204611515241 in words is "two hundred four billion, six hundred eleven million, five hundred fifteen thousand, two hundred forty-one".