1315605948 has 12 divisors (see below), whose sum is σ = 3069747240. Its totient is φ = 438535312.

The previous prime is 1315605947. The next prime is 1315605959. The reversal of 1315605948 is 8495065131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315605943) by changing a digit.

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, 54816903 + ... + 54816926.

It is an arithmetic number, because the mean of its divisors is an integer number (255812270).

Almost surely, 2^1315605948 is an apocalyptic number.

It is an amenable number.

1315605948 is an abundant number, since it is smaller than the sum of its proper divisors (1754141292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315605948 is a wasteful number, since it uses less digits than its factorization.

1315605948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109633836 (or 109633834 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 1315605948 is about 36271.2826903047. The cubic root of 1315605948 is about 1095.7427591265.

The spelling of 1315605948 in words is "one billion, three hundred fifteen million, six hundred five thousand, nine hundred forty-eight".