1204681 has 2 divisors, whose sum is σ = 1204682. Its totient is φ = 1204680.

The previous prime is 1204669. The next prime is 1204699. The reversal of 1204681 is 1864021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1190281 + 14400 = 1091^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204681 - 2⁵ = 1204649 is a prime.

It is a super-2 number, since 2×1204681² = 2902512623522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1204781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602340 + 602341.

It is an arithmetic number, because the mean of its divisors is an integer number (602341).

2^1204681 is an apocalyptic number.

It is an amenable number.

1204681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204681 is an equidigital number, since it uses as much as digits as its factorization.

1204681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1204681 is about 1097.5796098689. The cubic root of 1204681 is about 106.4038527728.

The spelling of 1204681 in words is "one million, two hundred four thousand, six hundred eighty-one".