1315560 has 64 divisors (see below), whose sum is σ = 4161600. Its totient is φ = 331776.

The previous prime is 1315553. The next prime is 1315591. The reversal of 1315560 is 655131.

It is a happy number.

It is a super-2 number, since 2×1315560² = 3461396227200, which contains 22 as substring.

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, 1992 + ... + 2568.

It is an arithmetic number, because the mean of its divisors is an integer number (65025).

2^1315560 is an apocalyptic number.

1315560 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 1315560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2080800).

1315560 is an abundant number, since it is smaller than the sum of its proper divisors (2846040).

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

1315560 is a wasteful number, since it uses less digits than its factorization.

1315560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1315560 is about 1146.9786397314. The cubic root of 1315560 is about 109.5730002578.

The spelling of 1315560 in words is "one million, three hundred fifteen thousand, five hundred sixty".