1230505215 has 8 divisors (see below), whose sum is σ = 1968808368. Its totient is φ = 656269440.

The previous prime is 1230505127. The next prime is 1230505217. The reversal of 1230505215 is 5125050321.

It is a happy number.

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

It is not a de Polignac number, because 1230505215 - 2⁸ = 1230504959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230505217) 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, 41016826 + ... + 41016855.

It is an arithmetic number, because the mean of its divisors is an integer number (246101046).

Almost surely, 2^1230505215 is an apocalyptic number.

1230505215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1230505215 is a deficient number, since it is larger than the sum of its proper divisors (738303153).

1230505215 is an equidigital number, since it uses as much as digits as its factorization.

1230505215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82033689.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1230505215 is about 35078.5577668182. The cubic root of 1230505215 is about 1071.5879456000.

Adding to 1230505215 its reverse (5125050321), we get a palindrome (6355555536).

The spelling of 1230505215 in words is "one billion, two hundred thirty million, five hundred five thousand, two hundred fifteen".