12405255241 has 4 divisors (see below), whose sum is σ = 12707822484. Its totient is φ = 12102688000.

The previous prime is 12405255227. The next prime is 12405255259. The reversal of 12405255241 is 14255250421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14255250421 = 1433 ⋅9947837.

It can be written as a sum of positive squares in 2 ways, for example, as 3456852025 + 8948403216 = 58795^2 + 94596^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12405255241 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12405255271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151283560 + ... + 151283641.

It is an arithmetic number, because the mean of its divisors is an integer number (3176955621).

Almost surely, 2^12405255241 is an apocalyptic number.

It is an amenable number.

12405255241 is a deficient number, since it is larger than the sum of its proper divisors (302567243).

12405255241 is an equidigital number, since it uses as much as digits as its factorization.

12405255241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302567242.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 12405255241 in words is "twelve billion, four hundred five million, two hundred fifty-five thousand, two hundred forty-one".