1315715 has 16 divisors (see below), whose sum is σ = 1747008. Its totient is φ = 946176.

The previous prime is 1315711. The next prime is 1315723. The reversal of 1315715 is 5175131.

It is a cyclic number.

It is not a de Polignac number, because 1315715 - 2² = 1315711 is a prime.

It is a super-2 number, since 2×1315715² = 3462211922450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1619 + ... + 2291.

It is an arithmetic number, because the mean of its divisors is an integer number (109188).

2^1315715 is an apocalyptic number.

1315715 is a deficient number, since it is larger than the sum of its proper divisors (431293).

1315715 is a wasteful number, since it uses less digits than its factorization.

1315715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its digits is 525, while the sum is 23.

The square root of 1315715 is about 1147.0462065671. The cubic root of 1315715 is about 109.5773034057.

The spelling of 1315715 in words is "one million, three hundred fifteen thousand, seven hundred fifteen".