1301319947 has 2 divisors, whose sum is σ = 1301319948. Its totient is φ = 1301319946.

The previous prime is 1301319913. The next prime is 1301320003. The reversal of 1301319947 is 7499131031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1301319947 - 2⁶ = 1301319883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1301319947.

It is not a weakly prime, because it can be changed into another prime (1301399947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650659973 + 650659974.

It is an arithmetic number, because the mean of its divisors is an integer number (650659974).

Almost surely, 2^1301319947 is an apocalyptic number.

1301319947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301319947 is an equidigital number, since it uses as much as digits as its factorization.

1301319947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 1301319947 is about 36073.8124821871. The cubic root of 1301319947 is about 1091.7621377983.

The spelling of 1301319947 in words is "one billion, three hundred one million, three hundred nineteen thousand, nine hundred forty-seven".