1215300630 has 32 divisors (see below), whose sum is σ = 2937715200. Its totient is φ = 321747552.

The previous prime is 1215300617. The next prime is 1215300679. The reversal of 1215300630 is 360035121.

It is a junction number, because it is equal to n+sod(n) for n = 1215300597 and 1215300606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141550 + ... + 149889.

It is an arithmetic number, because the mean of its divisors is an integer number (91803600).

Almost surely, 2^1215300630 is an apocalyptic number.

1215300630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1215300630 is an abundant number, since it is smaller than the sum of its proper divisors (1722414570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1215300630 is a wasteful number, since it uses less digits than its factorization.

1215300630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291588.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1215300630 is about 34861.1622009364. The cubic root of 1215300630 is about 1067.1559930468.

Adding to 1215300630 its reverse (360035121), we get a palindrome (1575335751).

The spelling of 1215300630 in words is "one billion, two hundred fifteen million, three hundred thousand, six hundred thirty".