1282661 has 2 divisors, whose sum is σ = 1282662. Its totient is φ = 1282660.

The previous prime is 1282657. The next prime is 1282681. The reversal of 1282661 is 1662821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 801025 + 481636 = 895^2 + 694^2 .

It is a cyclic number.

It is not a de Polignac number, because 1282661 - 2² = 1282657 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1282661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1282681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641330 + 641331.

It is an arithmetic number, because the mean of its divisors is an integer number (641331).

2^1282661 is an apocalyptic number.

It is an amenable number.

1282661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282661 is an equidigital number, since it uses as much as digits as its factorization.

1282661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 26.

The square root of 1282661 is about 1132.5462462964. The cubic root of 1282661 is about 108.6518928481.

The spelling of 1282661 in words is "one million, two hundred eighty-two thousand, six hundred sixty-one".