1306066947 has 16 divisors (see below), whose sum is σ = 1766077440. Its totient is φ = 858416832.

The previous prime is 1306066943. The next prime is 1306066961. The reversal of 1306066947 is 7496606031.

It is not a de Polignac number, because 1306066947 - 2² = 1306066943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1306066899 and 1306066908.

It is not an unprimeable number, because it can be changed into a prime (1306066943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172383 + ... + 179799.

It is an arithmetic number, because the mean of its divisors is an integer number (110379840).

Almost surely, 2^1306066947 is an apocalyptic number.

1306066947 is a deficient number, since it is larger than the sum of its proper divisors (460010493).

1306066947 is an equidigital number, since it uses as much as digits as its factorization.

1306066947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8242.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 1306066947 is about 36139.5482401205. The cubic root of 1306066947 is about 1093.0880494545.

The spelling of 1306066947 in words is "one billion, three hundred six million, sixty-six thousand, nine hundred forty-seven".