1280113 has 2 divisors, whose sum is σ = 1280114. Its totient is φ = 1280112.

The previous prime is 1280107. The next prime is 1280119. The reversal of 1280113 is 3110821.

It is a balanced prime because it is at equal distance from previous prime (1280107) and next prime (1280119).

It can be written as a sum of positive squares in only one way, i.e., 1216609 + 63504 = 1103^2 + 252^2 .

It is a cyclic number.

It is not a de Polignac number, because 1280113 - 2⁹ = 1279601 is a prime.

1280113 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1280119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640056 + 640057.

It is an arithmetic number, because the mean of its divisors is an integer number (640057).

2^1280113 is an apocalyptic number.

It is an amenable number.

1280113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1280113 is an equidigital number, since it uses as much as digits as its factorization.

1280113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1280113 is about 1131.4207882128. The cubic root of 1280113 is about 108.5798996655.

Adding to 1280113 its reverse (3110821), we get a palindrome (4390934).

The spelling of 1280113 in words is "one million, two hundred eighty thousand, one hundred thirteen".