1315320 has 64 divisors (see below), whose sum is σ = 4021920. Its totient is φ = 344064.

The previous prime is 1315309. The next prime is 1315367. The reversal of 1315320 is 235131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1315320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11584 + ... + 11696.

2^1315320 is an apocalyptic number.

1315320 is a gapful number since it is divisible by the number (10) 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 1315320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2010960).

1315320 is an abundant number, since it is smaller than the sum of its proper divisors (2706600).

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

1315320 is a wasteful number, since it uses less digits than its factorization.

1315320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1315320 is about 1146.8740122612. The cubic root of 1315320 is about 109.5663366521.

The spelling of 1315320 in words is "one million, three hundred fifteen thousand, three hundred twenty".