1301525 has 12 divisors (see below), whose sum is σ = 1636800. Its totient is φ = 1026480.

The previous prime is 1301507. The next prime is 1301527. The reversal of 1301525 is 5251031.

It is not a de Polignac number, because 1301525 - 2¹⁰ = 1300501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1646 + ... + 2304.

It is an arithmetic number, because the mean of its divisors is an integer number (136400).

2^1301525 is an apocalyptic number.

1301525 is the 659-th octagonal number.

It is an amenable number.

1301525 is a deficient number, since it is larger than the sum of its proper divisors (335275).

1301525 is an equidigital number, since it uses as much as digits as its factorization.

1301525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1301525 is about 1140.8439858280. The cubic root of 1301525 is about 109.1819478896.

Adding to 1301525 its reverse (5251031), we get a palindrome (6552556).

The spelling of 1301525 in words is "one million, three hundred one thousand, five hundred twenty-five".