1315609792 has 56 divisors (see below), whose sum is σ = 2991994016. Its totient is φ = 562249728.

The previous prime is 1315609769. The next prime is 1315609793. The reversal of 1315609792 is 2979065131.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (1315609793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163168 + ... + 171040.

Almost surely, 2^1315609792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315609792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1495997008).

1315609792 is an abundant number, since it is smaller than the sum of its proper divisors (1676384224).

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

1315609792 is an equidigital number, since it uses as much as digits as its factorization.

1315609792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265 (or 8255 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 1315609792 is about 36271.3356798450. The cubic root of 1315609792 is about 1095.7438263232.

The spelling of 1315609792 in words is "one billion, three hundred fifteen million, six hundred nine thousand, seven hundred ninety-two".