1280075 has 6 divisors (see below), whose sum is σ = 1587324. Its totient is φ = 1024040.

The previous prime is 1280023. The next prime is 1280101. The reversal of 1280075 is 5700821.

It is not a de Polignac number, because 1280075 - 2⁸ = 1279819 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 1280075.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25577 + ... + 25626.

It is an arithmetic number, because the mean of its divisors is an integer number (264554).

2^1280075 is an apocalyptic number.

1280075 is a deficient number, since it is larger than the sum of its proper divisors (307249).

1280075 is an equidigital number, since it uses as much as digits as its factorization.

1280075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51213 (or 51208 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1280075 is about 1131.4039950433. The cubic root of 1280075 is about 108.5788252611.

Adding to 1280075 its reverse (5700821), we get a palindrome (6980896).

The spelling of 1280075 in words is "one million, two hundred eighty thousand, seventy-five".