1298680307 has 2 divisors, whose sum is σ = 1298680308. Its totient is φ = 1298680306.

The previous prime is 1298680261. The next prime is 1298680319. The reversal of 1298680307 is 7030868921.

It is a strong prime.

It is an emirp because it is prime and its reverse (7030868921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1298680307 - 2¹⁴ = 1298663923 is a prime.

It is a super-2 number, since 2×1298680307² = 3373141079579228498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1298680007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649340153 + 649340154.

It is an arithmetic number, because the mean of its divisors is an integer number (649340154).

Almost surely, 2^1298680307 is an apocalyptic number.

1298680307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298680307 is an equidigital number, since it uses as much as digits as its factorization.

1298680307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1298680307 is about 36037.2072586098. The cubic root of 1298680307 is about 1091.0234494208.

The spelling of 1298680307 in words is "one billion, two hundred ninety-eight million, six hundred eighty thousand, three hundred seven".