1315431041 has 2 divisors, whose sum is σ = 1315431042. Its totient is φ = 1315431040.

The previous prime is 1315431031. The next prime is 1315431071. The reversal of 1315431041 is 1401345131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 703363441 + 612067600 = 26521^2 + 24740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1315431041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1315430998 and 1315431016.

It is not a weakly prime, because it can be changed into another prime (1315431001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657715520 + 657715521.

It is an arithmetic number, because the mean of its divisors is an integer number (657715521).

Almost surely, 2^1315431041 is an apocalyptic number.

It is an amenable number.

1315431041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315431041 is an equidigital number, since it uses as much as digits as its factorization.

1315431041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1315431041 is about 36268.8715153918. The cubic root of 1315431041 is about 1095.6941980881.

Adding to 1315431041 its reverse (1401345131), we get a palindrome (2716776172).

The spelling of 1315431041 in words is "one billion, three hundred fifteen million, four hundred thirty-one thousand, forty-one".