1275628 has 6 divisors (see below), whose sum is σ = 2232356. Its totient is φ = 637812.

The previous prime is 1275611. The next prime is 1275643. The reversal of 1275628 is 8265721.

It is a self number, because there is not a number n which added to its sum of digits gives 1275628.

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 as a sum of consecutive naturals, namely, 159450 + ... + 159457.

2^1275628 is an apocalyptic number.

It is an amenable number.

1275628 is a deficient number, since it is larger than the sum of its proper divisors (956728).

1275628 is a wasteful number, since it uses less digits than its factorization.

1275628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318911 (or 318909 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 1275628 is about 1129.4370279037. The cubic root of 1275628 is about 108.4529445483.

The spelling of 1275628 in words is "one million, two hundred seventy-five thousand, six hundred twenty-eight".