1296481 has 2 divisors, whose sum is σ = 1296482. Its totient is φ = 1296480.

The previous prime is 1296473. The next prime is 1296499. The reversal of 1296481 is 1846921.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1030225 + 266256 = 1015^2 + 516^2 .

It is an emirp because it is prime and its reverse (1846921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1296481 - 2³ = 1296473 is a prime.

It is a super-2 number, since 2×1296481² = 3361725966722, which contains 22 as substring.

It is a Chen prime.

1296481 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1296181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648240 + 648241.

It is an arithmetic number, because the mean of its divisors is an integer number (648241).

2^1296481 is an apocalyptic number.

It is an amenable number.

1296481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1296481 is an equidigital number, since it uses as much as digits as its factorization.

1296481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 31.

The square root of 1296481 is about 1138.6311957785. The cubic root of 1296481 is about 109.0407220961.

The spelling of 1296481 in words is "one million, two hundred ninety-six thousand, four hundred eighty-one".