1315525 has 12 divisors (see below), whose sum is σ = 1650564. Its totient is φ = 1040000.

The previous prime is 1315519. The next prime is 1315537. The reversal of 1315525 is 5255131.

It can be written as a sum of positive squares in 6 ways, for example, as 2209 + 1313316 = 47^2 + 1146^2 .

It is not a de Polignac number, because 1315525 - 2⁵ = 1315493 is a prime.

It is a Duffinian number.

1315525 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1315496 and 1315505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2265 + ... + 2785.

It is an arithmetic number, because the mean of its divisors is an integer number (137547).

2^1315525 is an apocalyptic number.

It is an amenable number.

1315525 is a deficient number, since it is larger than the sum of its proper divisors (335039).

1315525 is a wasteful number, since it uses less digits than its factorization.

1315525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 627 counting only the distinct ones).

The product of its digits is 750, while the sum is 22.

The square root of 1315525 is about 1146.9633821531. The cubic root of 1315525 is about 109.5720285324.

The spelling of 1315525 in words is "one million, three hundred fifteen thousand, five hundred twenty-five".