1256875 has 10 divisors (see below), whose sum is σ = 1571372. Its totient is φ = 1005000.

The previous prime is 1256873. The next prime is 1256887. The reversal of 1256875 is 5786521.

It is not a de Polignac number, because 1256875 - 2¹ = 1256873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1256875.

It is not an unprimeable number, because it can be changed into a prime (1256873) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 381 + ... + 1630.

2^1256875 is an apocalyptic number.

1256875 is a deficient number, since it is larger than the sum of its proper divisors (314497).

1256875 is an frugal number, since it uses more digits than its factorization.

1256875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031 (or 2016 counting only the distinct ones).

The product of its digits is 16800, while the sum is 34.

The square root of 1256875 is about 1121.1043662389. The cubic root of 1256875 is about 107.9188633857.

The spelling of 1256875 in words is "one million, two hundred fifty-six thousand, eight hundred seventy-five".