1280575 has 12 divisors (see below), whose sum is σ = 1602328. Its totient is φ = 1015200.

The previous prime is 1280567. The next prime is 1280597. The reversal of 1280575 is 5750821.

It is not a de Polignac number, because 1280575 - 2³ = 1280567 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 Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4384 + ... + 4666.

2^1280575 is an apocalyptic number.

1280575 is a deficient number, since it is larger than the sum of its proper divisors (321753).

1280575 is a wasteful number, since it uses less digits than its factorization.

1280575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 1280575 is about 1131.6249378659. The cubic root of 1280575 is about 108.5929604604.

It can be divided in two parts, 12805 and 75, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 1280575 in words is "one million, two hundred eighty thousand, five hundred seventy-five".