1315473847 has 2 divisors, whose sum is σ = 1315473848. Its totient is φ = 1315473846.

The previous prime is 1315473827. The next prime is 1315473893. The reversal of 1315473847 is 7483745131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1315473847 - 2¹¹ = 1315471799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315473827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657736923 + 657736924.

It is an arithmetic number, because the mean of its divisors is an integer number (657736924).

Almost surely, 2^1315473847 is an apocalyptic number.

1315473847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315473847 is an equidigital number, since it uses as much as digits as its factorization.

1315473847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 43.

The square root of 1315473847 is about 36269.4616309644. The cubic root of 1315473847 is about 1095.7060831092.

The spelling of 1315473847 in words is "one billion, three hundred fifteen million, four hundred seventy-three thousand, eight hundred forty-seven".