1312086241 has 4 divisors (see below), whose sum is σ = 1312453012. Its totient is φ = 1311719472.

The previous prime is 1312086239. The next prime is 1312086257. The reversal of 1312086241 is 1426802131.

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 528310225 + 783776016 = 22985^2 + 27996^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312086241 - 2¹ = 1312086239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312081241) 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, 177966 + ... + 185191.

It is an arithmetic number, because the mean of its divisors is an integer number (328113253).

Almost surely, 2^1312086241 is an apocalyptic number.

It is an amenable number.

1312086241 is a deficient number, since it is larger than the sum of its proper divisors (366771).

1312086241 is an equidigital number, since it uses as much as digits as its factorization.

1312086241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366770.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1312086241 is about 36222.7309986423. The cubic root of 1312086241 is about 1094.7647211048.

Adding to 1312086241 its reverse (1426802131), we get a palindrome (2738888372).

The spelling of 1312086241 in words is "one billion, three hundred twelve million, eighty-six thousand, two hundred forty-one".