1272961 has 2 divisors, whose sum is σ = 1272962. Its totient is φ = 1272960.

The previous prime is 1272941. The next prime is 1272983. The reversal of 1272961 is 1692721.

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., 732736 + 540225 = 856^2 + 735^2 .

It is an emirp because it is prime and its reverse (1692721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1272961 - 2⁷ = 1272833 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1272941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636480 + 636481.

It is an arithmetic number, because the mean of its divisors is an integer number (636481).

2^1272961 is an apocalyptic number.

It is an amenable number.

1272961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272961 is an equidigital number, since it uses as much as digits as its factorization.

1272961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 28.

The square root of 1272961 is about 1128.2557334222. The cubic root of 1272961 is about 108.3773096937.

The spelling of 1272961 in words is "one million, two hundred seventy-two thousand, nine hundred sixty-one".