1315790947 has 2 divisors, whose sum is σ = 1315790948. Its totient is φ = 1315790946.

The previous prime is 1315790941. The next prime is 1315790953. The reversal of 1315790947 is 7490975131.

It is a balanced prime because it is at equal distance from previous prime (1315790941) and next prime (1315790953).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1315790947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1315790897 and 1315790906.

It is not a weakly prime, because it can be changed into another prime (1315790941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657895473 + 657895474.

It is an arithmetic number, because the mean of its divisors is an integer number (657895474).

Almost surely, 2^1315790947 is an apocalyptic number.

1315790947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315790947 is an equidigital number, since it uses as much as digits as its factorization.

1315790947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 1315790947 is about 36273.8328137516. The cubic root of 1315790947 is about 1095.7941174161.

The spelling of 1315790947 in words is "one billion, three hundred fifteen million, seven hundred ninety thousand, nine hundred forty-seven".