1315481946 has 16 divisors (see below), whose sum is σ = 2650169664. Its totient is φ = 435293024.

The previous prime is 1315481917. The next prime is 1315482001. The reversal of 1315481946 is 6491845131.

It is a junction number, because it is equal to n+sod(n) for n = 1315481898 and 1315481907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799350 + ... + 800993.

It is an arithmetic number, because the mean of its divisors is an integer number (165635604).

Almost surely, 2^1315481946 is an apocalyptic number.

1315481946 is an abundant number, since it is smaller than the sum of its proper divisors (1334687718).

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

1315481946 is a wasteful number, since it uses less digits than its factorization.

1315481946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600485.

The product of its digits is 103680, while the sum is 42.

The square root of 1315481946 is about 36269.5732811954. The cubic root of 1315481946 is about 1095.7083317553.

The spelling of 1315481946 in words is "one billion, three hundred fifteen million, four hundred eighty-one thousand, nine hundred forty-six".