1303525 has 12 divisors (see below), whose sum is σ = 1687392. Its totient is φ = 997040.

The previous prime is 1303517. The next prime is 1303537. The reversal of 1303525 is 5253031.

It is not a de Polignac number, because 1303525 - 2³ = 1303517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559 + ... + 1708.

It is an arithmetic number, because the mean of its divisors is an integer number (140616).

2^1303525 is an apocalyptic number.

It is an amenable number.

1303525 is a deficient number, since it is larger than the sum of its proper divisors (383867).

1303525 is a wasteful number, since it uses less digits than its factorization.

1303525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300 (or 2295 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 1303525 is about 1141.7201933924. The cubic root of 1303525 is about 109.2378444061.

Adding to 1303525 its reverse (5253031), we get a palindrome (6556556).

It can be divided in two parts, 130 and 3525, that added together give a triangular number (3655 = T₈₅).

The spelling of 1303525 in words is "one million, three hundred three thousand, five hundred twenty-five".