1315647428 has 12 divisors (see below), whose sum is σ = 2324736960. Its totient is φ = 651436872.

The previous prime is 1315647407. The next prime is 1315647467. The reversal of 1315647428 is 8247465131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1596248 + ... + 1597071.

It is an arithmetic number, because the mean of its divisors is an integer number (193728080).

Almost surely, 2^1315647428 is an apocalyptic number.

It is an amenable number.

1315647428 is a deficient number, since it is larger than the sum of its proper divisors (1009089532).

1315647428 is a wasteful number, since it uses less digits than its factorization.

1315647428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193426 (or 3193424 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 1315647428 is about 36271.8544880187. The cubic root of 1315647428 is about 1095.7542749688.

The spelling of 1315647428 in words is "one billion, three hundred fifteen million, six hundred forty-seven thousand, four hundred twenty-eight".