12150915 has 32 divisors (see below), whose sum is σ = 22941696. Its totient is φ = 5374080.

The previous prime is 12150907. The next prime is 12150947. The reversal of 12150915 is 51905121.

It is not a de Polignac number, because 12150915 - 2³ = 12150907 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1389 + ... + 5121.

It is an arithmetic number, because the mean of its divisors is an integer number (716928).

Almost surely, 2^12150915 is an apocalyptic number.

12150915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12150915 is a deficient number, since it is larger than the sum of its proper divisors (10790781).

12150915 is a wasteful number, since it uses less digits than its factorization.

12150915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779.

The product of its (nonzero) digits is 450, while the sum is 24.

The square root of 12150915 is about 3485.8162602180. The cubic root of 12150915 is about 229.8986005455.

The spelling of 12150915 in words is "twelve million, one hundred fifty thousand, nine hundred fifteen".