1315120 has 40 divisors (see below), whose sum is σ = 3240864. Its totient is φ = 494592.

The previous prime is 1315087. The next prime is 1315151. The reversal of 1315120 is 215131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1315120² = 3459081228800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1315120.

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, 877 + ... + 1843.

2^1315120 is an apocalyptic number.

1315120 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 1315120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620432).

1315120 is an abundant number, since it is smaller than the sum of its proper divisors (1925744).

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

1315120 is a wasteful number, since it uses less digits than its factorization.

1315120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1315120 is about 1146.7868154108. The cubic root of 1315120 is about 109.5607830281.

The spelling of 1315120 in words is "one million, three hundred fifteen thousand, one hundred twenty".