1312841 has 2 divisors, whose sum is σ = 1312842. Its totient is φ = 1312840.

The previous prime is 1312823. The next prime is 1312847. The reversal of 1312841 is 1482131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1042441 + 270400 = 1021^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312841 - 2⁶ = 1312777 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1312847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656420 + 656421.

It is an arithmetic number, because the mean of its divisors is an integer number (656421).

2^1312841 is an apocalyptic number.

It is an amenable number.

1312841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312841 is an equidigital number, since it uses as much as digits as its factorization.

1312841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 20.

The square root of 1312841 is about 1145.7927386748. The cubic root of 1312841 is about 109.4974596827.

Adding to 1312841 its reverse (1482131), we get a palindrome (2794972).

The spelling of 1312841 in words is "one million, three hundred twelve thousand, eight hundred forty-one".