1306817630 has 8 divisors (see below), whose sum is σ = 2352271752. Its totient is φ = 522727048.

The previous prime is 1306817623. The next prime is 1306817651. The reversal of 1306817630 is 367186031.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65340872 + ... + 65340891.

It is an arithmetic number, because the mean of its divisors is an integer number (294033969).

Almost surely, 2^1306817630 is an apocalyptic number.

1306817630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1306817630 is a deficient number, since it is larger than the sum of its proper divisors (1045454122).

1306817630 is a wasteful number, since it uses less digits than its factorization.

1306817630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130681770.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1306817630 is about 36149.9326417076. The cubic root of 1306817630 is about 1093.2974326610.

The spelling of 1306817630 in words is "one billion, three hundred six million, eight hundred seventeen thousand, six hundred thirty".