1257875 has 16 divisors (see below), whose sum is σ = 1628640. Its totient is φ = 968800.

The previous prime is 1257869. The next prime is 1257877. The reversal of 1257875 is 5787521.

It is not a de Polignac number, because 1257875 - 2⁴ = 1257859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1257877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3452 + ... + 3798.

It is an arithmetic number, because the mean of its divisors is an integer number (101790).

2^1257875 is an apocalyptic number.

1257875 is a deficient number, since it is larger than the sum of its proper divisors (370765).

1257875 is an equidigital number, since it uses as much as digits as its factorization.

1257875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 381 counting only the distinct ones).

The product of its digits is 19600, while the sum is 35.

The square root of 1257875 is about 1121.5502663724. The cubic root of 1257875 is about 107.9474767469.

It can be divided in two parts, 125 and 7875, that added together give a cube (8000 = 20³).

The spelling of 1257875 in words is "one million, two hundred fifty-seven thousand, eight hundred seventy-five".