1280622007 has 6 divisors (see below), whose sum is σ = 1489703208. Its totient is φ = 1097675964.

The previous prime is 1280621999. The next prime is 1280622011. The reversal of 1280622007 is 7002260821.

It is not a de Polignac number, because 1280622007 - 2³ = 1280621999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280622017) 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, 13067523 + ... + 13067620.

It is an arithmetic number, because the mean of its divisors is an integer number (248283868).

Almost surely, 2^1280622007 is an apocalyptic number.

1280622007 is a deficient number, since it is larger than the sum of its proper divisors (209081201).

1280622007 is an equidigital number, since it uses as much as digits as its factorization.

1280622007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26135157 (or 26135150 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1280622007 is about 35785.7793962909. The cubic root of 1280622007 is about 1085.9428917781.

Adding to 1280622007 its reverse (7002260821), we get a palindrome (8282882828).

The spelling of 1280622007 in words is "one billion, two hundred eighty million, six hundred twenty-two thousand, seven".