1285375 has 32 divisors (see below), whose sum is σ = 1991808. Its totient is φ = 806400.

The previous prime is 1285351. The next prime is 1285381. The reversal of 1285375 is 5735821.

It is not a de Polignac number, because 1285375 - 2⁷ = 1285247 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11319 + ... + 11431.

It is an arithmetic number, because the mean of its divisors is an integer number (62244).

2^1285375 is an apocalyptic number.

1285375 is a deficient number, since it is larger than the sum of its proper divisors (706433).

1285375 is a wasteful number, since it uses less digits than its factorization.

1285375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 138 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 1285375 is about 1133.7437982190. The cubic root of 1285375 is about 108.7284715389.

The spelling of 1285375 in words is "one million, two hundred eighty-five thousand, three hundred seventy-five".