1230186915 has 24 divisors (see below), whose sum is σ = 2189957328. Its totient is φ = 638366400.

The previous prime is 1230186899. The next prime is 1230186941. The reversal of 1230186915 is 5196810321.

It is not a de Polignac number, because 1230186915 - 2⁴ = 1230186899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1230186915.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 367761 + ... + 371090.

It is an arithmetic number, because the mean of its divisors is an integer number (91248222).

Almost surely, 2^1230186915 is an apocalyptic number.

1230186915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1230186915 is a deficient number, since it is larger than the sum of its proper divisors (959770413).

1230186915 is a wasteful number, since it uses less digits than its factorization.

1230186915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738899 (or 738896 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1230186915 is about 35074.0205137649. The cubic root of 1230186915 is about 1071.4955402331.

The spelling of 1230186915 in words is "one billion, two hundred thirty million, one hundred eighty-six thousand, nine hundred fifteen".