1313705 has 4 divisors (see below), whose sum is σ = 1576452. Its totient is φ = 1050960.

The previous prime is 1313701. The next prime is 1313723. The reversal of 1313705 is 5073131.

1313705 = T₄₁₁ + T₄₁₂ + ... + T₄₂₅.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5073131 = 7 ⋅724733.

It can be written as a sum of positive squares in 2 ways, for example, as 337561 + 976144 = 581^2 + 988^2 .

It is not a de Polignac number, because 1313705 - 2² = 1313701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131366 + ... + 131375.

It is an arithmetic number, because the mean of its divisors is an integer number (394113).

2^1313705 is an apocalyptic number.

It is an amenable number.

1313705 is a deficient number, since it is larger than the sum of its proper divisors (262747).

1313705 is an equidigital number, since it uses as much as digits as its factorization.

1313705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262746.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 1313705 is about 1146.1697082021. The cubic root of 1313705 is about 109.5214750455.

Adding to 1313705 its reverse (5073131), we get a palindrome (6386836).

The spelling of 1313705 in words is "one million, three hundred thirteen thousand, seven hundred five".