1315407647 has 4 divisors (see below), whose sum is σ = 1321306560. Its totient is φ = 1309508736.

The previous prime is 1315407637. The next prime is 1315407649. The reversal of 1315407647 is 7467045131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1315407647 - 2⁸ = 1315407391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315407647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315407649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2949122 + ... + 2949567.

It is an arithmetic number, because the mean of its divisors is an integer number (330326640).

Almost surely, 2^1315407647 is an apocalyptic number.

1315407647 is a deficient number, since it is larger than the sum of its proper divisors (5898913).

1315407647 is an equidigital number, since it uses as much as digits as its factorization.

1315407647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898912.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 1315407647 is about 36268.5490059914. The cubic root of 1315407647 is about 1095.6877026705.

The spelling of 1315407647 in words is "one billion, three hundred fifteen million, four hundred seven thousand, six hundred forty-seven".