1297732067 has 2 divisors, whose sum is σ = 1297732068. Its totient is φ = 1297732066.

The previous prime is 1297732061. The next prime is 1297732099. The reversal of 1297732067 is 7602377921.

It is a weak prime.

It is an emirp because it is prime and its reverse (7602377921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1297732067 - 2⁶ = 1297732003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1297732061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648866033 + 648866034.

It is an arithmetic number, because the mean of its divisors is an integer number (648866034).

Almost surely, 2^1297732067 is an apocalyptic number.

1297732067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297732067 is an equidigital number, since it uses as much as digits as its factorization.

1297732067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 1297732067 is about 36024.0484537760. The cubic root of 1297732067 is about 1090.7578454413.

The spelling of 1297732067 in words is "one billion, two hundred ninety-seven million, seven hundred thirty-two thousand, sixty-seven".