1428175 has 12 divisors (see below), whose sum is σ = 2024176. Its totient is φ = 979200.

The previous prime is 1428169. The next prime is 1428179. The reversal of 1428175 is 5718241.

It is not a de Polignac number, because 1428175 - 2⁵ = 1428143 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428179) 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 11 ways as a sum of consecutive naturals, for example, 3906 + ... + 4255.

2^1428175 is an apocalyptic number.

1428175 is a deficient number, since it is larger than the sum of its proper divisors (596001).

1428175 is an equidigital number, since it uses as much as digits as its factorization.

1428175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8178 (or 8173 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 1428175 is about 1195.0627598582. The cubic root of 1428175 is about 112.6143692877.

The spelling of 1428175 in words is "one million, four hundred twenty-eight thousand, one hundred seventy-five".