1276525 has 6 divisors (see below), whose sum is σ = 1582922. Its totient is φ = 1021200.

The previous prime is 1276511. The next prime is 1276529. The reversal of 1276525 is 5256721.

It can be written as a sum of positive squares in 3 ways, for example, as 8649 + 1267876 = 93^2 + 1126^2 .

It is not a de Polignac number, because 1276525 - 2⁷ = 1276397 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1276493 and 1276502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276529) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 25506 + ... + 25555.

2^1276525 is an apocalyptic number.

It is an amenable number.

1276525 is a deficient number, since it is larger than the sum of its proper divisors (306397).

1276525 is an equidigital number, since it uses as much as digits as its factorization.

1276525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51071 (or 51066 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 1276525 is about 1129.8340586121. The cubic root of 1276525 is about 108.4783593500.

The spelling of 1276525 in words is "one million, two hundred seventy-six thousand, five hundred twenty-five".