1300681 has 2 divisors, whose sum is σ = 1300682. Its totient is φ = 1300680.

The previous prime is 1300669. The next prime is 1300709. The reversal of 1300681 is 1860031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1245456 + 55225 = 1116^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1300681 - 2⁷ = 1300553 is a prime.

It is a super-2 number, since 2×1300681² = 3383542127522, which contains 22 as substring.

1300681 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1300181) by changing a digit.

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 as a sum of consecutive naturals, namely, 650340 + 650341.

It is an arithmetic number, because the mean of its divisors is an integer number (650341).

2^1300681 is an apocalyptic number.

It is an amenable number.

1300681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300681 is an equidigital number, since it uses as much as digits as its factorization.

1300681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1300681 is about 1140.4740242548. The cubic root of 1300681 is about 109.1583423782.

The spelling of 1300681 in words is "one million, three hundred thousand, six hundred eighty-one".