1313513 has 6 divisors (see below), whose sum is σ = 1339182. Its totient is φ = 1288320.

The previous prime is 1313467. The next prime is 1313567. The reversal of 1313513 is 3153131.

It can be written as a sum of positive squares in 3 ways, for example, as 85849 + 1227664 = 293^2 + 1108^2 .

It is not a de Polignac number, because 1313513 - 2⁶ = 1313449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313491 and 1313500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3545 + ... + 3897.

It is an arithmetic number, because the mean of its divisors is an integer number (223197).

2^1313513 is an apocalyptic number.

It is an amenable number.

1313513 is a deficient number, since it is larger than the sum of its proper divisors (25669).

1313513 is an frugal number, since it uses more digits than its factorization.

1313513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 414 counting only the distinct ones).

The product of its digits is 135, while the sum is 17.

The square root of 1313513 is about 1146.0859479114. The cubic root of 1313513 is about 109.5161392084.

Adding to 1313513 its reverse (3153131), we get a palindrome (4466644).

The spelling of 1313513 in words is "one million, three hundred thirteen thousand, five hundred thirteen".