1313525 has 6 divisors (see below), whose sum is σ = 1628802. Its totient is φ = 1050800.

The previous prime is 1313467. The next prime is 1313567. The reversal of 1313525 is 5253131.

It can be written as a sum of positive squares in 3 ways, for example, as 418609 + 894916 = 647^2 + 946^2 .

It is not a de Polignac number, because 1313525 - 2²⁰ = 264949 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 1313497 and 1313506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26246 + ... + 26295.

It is an arithmetic number, because the mean of its divisors is an integer number (271467).

2^1313525 is an apocalyptic number.

It is an amenable number.

1313525 is a deficient number, since it is larger than the sum of its proper divisors (315277).

1313525 is an equidigital number, since it uses as much as digits as its factorization.

1313525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52551 (or 52546 counting only the distinct ones).

The product of its digits is 450, while the sum is 20.

The square root of 1313525 is about 1146.0911831089. The cubic root of 1313525 is about 109.5164727134.

Adding to 1313525 its reverse (5253131), we get a palindrome (6566656).

The spelling of 1313525 in words is "one million, three hundred thirteen thousand, five hundred twenty-five".