1261747 has 2 divisors, whose sum is σ = 1261748. Its totient is φ = 1261746.

The previous prime is 1261739. The next prime is 1261759. The reversal of 1261747 is 7471621.

It is a weak prime.

It is an emirp because it is prime and its reverse (7471621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1261747 - 2³ = 1261739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1261717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630873 + 630874.

It is an arithmetic number, because the mean of its divisors is an integer number (630874).

2^1261747 is an apocalyptic number.

1261747 is a deficient number, since it is larger than the sum of its proper divisors (1).

1261747 is an equidigital number, since it uses as much as digits as its factorization.

1261747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2352, while the sum is 28.

The square root of 1261747 is about 1123.2751221317. The cubic root of 1261747 is about 108.0581248620.

The spelling of 1261747 in words is "one million, two hundred sixty-one thousand, seven hundred forty-seven".