1315377792 has 160 divisors (see below), whose sum is σ = 3936974580. Its totient is φ = 435953664.

The previous prime is 1315377779. The next prime is 1315377803. The reversal of 1315377792 is 2977735131.

It can be written as a sum of positive squares in 2 ways, for example, as 1311598656 + 3779136 = 36216^2 + 1944^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3037608 + ... + 3038040.

Almost surely, 2^1315377792 is an apocalyptic number.

1315377792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315377792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1968487290).

1315377792 is an abundant number, since it is smaller than the sum of its proper divisors (2621596788).

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

1315377792 is an equidigital number, since it uses as much as digits as its factorization.

1315377792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 731 counting only the distinct ones).

The product of its digits is 277830, while the sum is 45.

The square root of 1315377792 is about 36268.1374211580. The cubic root of 1315377792 is about 1095.6794132240.

The spelling of 1315377792 in words is "one billion, three hundred fifteen million, three hundred seventy-seven thousand, seven hundred ninety-two".