1280007 has 6 divisors (see below), whose sum is σ = 1848912. Its totient is φ = 853332.

The previous prime is 1279997. The next prime is 1280023. The reversal of 1280007 is 7000821.

It is not a de Polignac number, because 1280007 - 2¹⁰ = 1278983 is a prime.

1280007 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71103 + ... + 71120.

It is an arithmetic number, because the mean of its divisors is an integer number (308152).

2^1280007 is an apocalyptic number.

1280007 is a deficient number, since it is larger than the sum of its proper divisors (568905).

1280007 is a wasteful number, since it uses less digits than its factorization.

1280007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142229 (or 142226 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1280007 is about 1131.3739434864. The cubic root of 1280007 is about 108.5769025897.

Adding to 1280007 its reverse (7000821), we get a palindrome (8280828).

The spelling of 1280007 in words is "one million, two hundred eighty thousand, seven".