1306630663 has 8 divisors (see below), whose sum is σ = 1408630608. Its totient is φ = 1204843584.

The previous prime is 1306630649. The next prime is 1306630673. The reversal of 1306630663 is 3660366031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1306630663 - 2⁵ = 1306630631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306630603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40345 + ... + 65122.

It is an arithmetic number, because the mean of its divisors is an integer number (176078826).

Almost surely, 2^1306630663 is an apocalyptic number.

1306630663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1306630663 is a deficient number, since it is larger than the sum of its proper divisors (101999945).

1306630663 is a wasteful number, since it uses less digits than its factorization.

1306630663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106433.

The product of its (nonzero) digits is 34992, while the sum is 34.

The square root of 1306630663 is about 36147.3465554527. The cubic root of 1306630663 is about 1093.2452906519.

Adding to 1306630663 its reverse (3660366031), we get a palindrome (4966996694).

The spelling of 1306630663 in words is "one billion, three hundred six million, six hundred thirty thousand, six hundred sixty-three".