1282657 has 2 divisors, whose sum is σ = 1282658. Its totient is φ = 1282656.

The previous prime is 1282649. The next prime is 1282661. The reversal of 1282657 is 7562821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1089936 + 192721 = 1044^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 1282657 - 2³ = 1282649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1282607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641328 + 641329.

It is an arithmetic number, because the mean of its divisors is an integer number (641329).

2^1282657 is an apocalyptic number.

It is an amenable number.

1282657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282657 is an equidigital number, since it uses as much as digits as its factorization.

1282657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 1282657 is about 1132.5444803627. The cubic root of 1282657 is about 108.6517799037.

The spelling of 1282657 in words is "one million, two hundred eighty-two thousand, six hundred fifty-seven".