1315660 has 24 divisors (see below), whose sum is σ = 2787120. Its totient is φ = 521664.

The previous prime is 1315651. The next prime is 1315661. The reversal of 1315660 is 665131.

It is a super-2 number, since 2×1315660² = 3461922471200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1315661) 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, 2931 + ... + 3349.

It is an arithmetic number, because the mean of its divisors is an integer number (116130).

2^1315660 is an apocalyptic number.

1315660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315660 is an abundant number, since it is smaller than the sum of its proper divisors (1471460).

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

1315660 is a wasteful number, since it uses less digits than its factorization.

1315660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1315660 is about 1147.0222316939. The cubic root of 1315660 is about 109.5757765210.

The spelling of 1315660 in words is "one million, three hundred fifteen thousand, six hundred sixty".