1315524047 has 2 divisors, whose sum is σ = 1315524048. Its totient is φ = 1315524046.

The previous prime is 1315524043. The next prime is 1315524079. The reversal of 1315524047 is 7404255131.

It is an a-pointer prime, because the next prime (1315524079) can be obtained adding 1315524047 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1315524047 - 2² = 1315524043 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315524043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657762023 + 657762024.

It is an arithmetic number, because the mean of its divisors is an integer number (657762024).

Almost surely, 2^1315524047 is an apocalyptic number.

1315524047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315524047 is an equidigital number, since it uses as much as digits as its factorization.

1315524047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 1315524047 is about 36270.1536666169. The cubic root of 1315524047 is about 1095.7200207348.

Adding to 1315524047 its reverse (7404255131), we get a palindrome (8719779178).

The spelling of 1315524047 in words is "one billion, three hundred fifteen million, five hundred twenty-four thousand, forty-seven".