1295681 has 2 divisors, whose sum is σ = 1295682. Its totient is φ = 1295680.

The previous prime is 1295653. The next prime is 1295711. The reversal of 1295681 is 1865921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 982081 + 313600 = 991^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 1295681 - 2⁶ = 1295617 is a prime.

It is a super-2 number, since 2×1295681² = 3357578507522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1295611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647840 + 647841.

It is an arithmetic number, because the mean of its divisors is an integer number (647841).

2^1295681 is an apocalyptic number.

It is an amenable number.

1295681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295681 is an equidigital number, since it uses as much as digits as its factorization.

1295681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 32.

The square root of 1295681 is about 1138.2798425695. The cubic root of 1295681 is about 109.0182894428.

The spelling of 1295681 in words is "one million, two hundred ninety-five thousand, six hundred eighty-one".