1297528 has 16 divisors (see below), whose sum is σ = 2475000. Its totient is φ = 637536.

The previous prime is 1297523. The next prime is 1297537. The reversal of 1297528 is 8257921.

It is a junction number, because it is equal to n+sod(n) for n = 1297493 and 1297502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297523) 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 3 ways as a sum of consecutive naturals, for example, 903 + ... + 1846.

2^1297528 is an apocalyptic number.

It is an amenable number.

1297528 is a deficient number, since it is larger than the sum of its proper divisors (1177472).

1297528 is a wasteful number, since it uses less digits than its factorization.

1297528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814 (or 2810 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 1297528 is about 1139.0908655590. The cubic root of 1297528 is about 109.0700668937.

The spelling of 1297528 in words is "one million, two hundred ninety-seven thousand, five hundred twenty-eight".