1299738967 has 2 divisors, whose sum is σ = 1299738968. Its totient is φ = 1299738966.

The previous prime is 1299738949. The next prime is 1299738977. The reversal of 1299738967 is 7698379921.

It is a strong prime.

It is an emirp because it is prime and its reverse (7698379921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1299738967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1299738977) 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, 649869483 + 649869484.

It is an arithmetic number, because the mean of its divisors is an integer number (649869484).

Almost surely, 2^1299738967 is an apocalyptic number.

1299738967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299738967 is an equidigital number, since it uses as much as digits as its factorization.

1299738967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10287648, while the sum is 61.

The square root of 1299738967 is about 36051.8926965007. The cubic root of 1299738967 is about 1091.3198295666.

The spelling of 1299738967 in words is "one billion, two hundred ninety-nine million, seven hundred thirty-eight thousand, nine hundred sixty-seven".