1296655 has 8 divisors (see below), whose sum is σ = 1638000. Its totient is φ = 982656.

The previous prime is 1296649. The next prime is 1296679. The reversal of 1296655 is 5566921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1296655 - 2⁵ = 1296623 is a prime.

1296655 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1296655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6730 + ... + 6919.

It is an arithmetic number, because the mean of its divisors is an integer number (204750).

2^1296655 is an apocalyptic number.

1296655 is a deficient number, since it is larger than the sum of its proper divisors (341345).

1296655 is a wasteful number, since it uses less digits than its factorization.

1296655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13673.

The product of its digits is 16200, while the sum is 34.

The square root of 1296655 is about 1138.7076007474. The cubic root of 1296655 is about 109.0455999763.

The spelling of 1296655 in words is "one million, two hundred ninety-six thousand, six hundred fifty-five".