1298130947 has 2 divisors, whose sum is σ = 1298130948. Its totient is φ = 1298130946.

The previous prime is 1298130943. The next prime is 1298130959. The reversal of 1298130947 is 7490318921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1298130947 - 2² = 1298130943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1298130898 and 1298130907.

It is not a weakly prime, because it can be changed into another prime (1298130943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649065473 + 649065474.

It is an arithmetic number, because the mean of its divisors is an integer number (649065474).

Almost surely, 2^1298130947 is an apocalyptic number.

1298130947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298130947 is an equidigital number, since it uses as much as digits as its factorization.

1298130947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1298130947 is about 36029.5843301029. The cubic root of 1298130947 is about 1090.8695883122.

The spelling of 1298130947 in words is "one billion, two hundred ninety-eight million, one hundred thirty thousand, nine hundred forty-seven".