1306501630 has 32 divisors (see below), whose sum is σ = 2691751104. Its totient is φ = 447261696.

The previous prime is 1306501627. The next prime is 1306501631. The reversal of 1306501630 is 361056031.

It is a junction number, because it is equal to n+sod(n) for n = 1306501595 and 1306501604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306501631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33244 + ... + 60976.

It is an arithmetic number, because the mean of its divisors is an integer number (84117222).

Almost surely, 2^1306501630 is an apocalyptic number.

1306501630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1306501630 is an abundant number, since it is smaller than the sum of its proper divisors (1385249474).

1306501630 is a wasteful number, since it uses less digits than its factorization.

1306501630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28420.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1306501630 is about 36145.5616915826. The cubic root of 1306501630 is about 1093.2093025778.

Adding to 1306501630 its reverse (361056031), we get a palindrome (1667557661).

The spelling of 1306501630 in words is "one billion, three hundred six million, five hundred one thousand, six hundred thirty".