1275525 has 18 divisors (see below), whose sum is σ = 2285010. Its totient is φ = 680160.

The previous prime is 1275523. The next prime is 1275539. The reversal of 1275525 is 5255721.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 16641 + 1258884 = 129^2 + 1122^2 .

It is not a de Polignac number, because 1275525 - 2¹ = 1275523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275523) 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 17 ways as a sum of consecutive naturals, for example, 2610 + ... + 3059.

It is an arithmetic number, because the mean of its divisors is an integer number (126945).

2^1275525 is an apocalyptic number.

1275525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1275525 is a deficient number, since it is larger than the sum of its proper divisors (1009485).

1275525 is a wasteful number, since it uses less digits than its factorization.

1275525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685 (or 5677 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 1275525 is about 1129.3914290449. The cubic root of 1275525 is about 108.4500254753.

The spelling of 1275525 in words is "one million, two hundred seventy-five thousand, five hundred twenty-five".