12123150 has 48 divisors (see below), whose sum is σ = 32383344. Its totient is φ = 2983680.

The previous prime is 12123107. The next prime is 12123151. The reversal of 12123150 is 5132121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1159 + ... + 5058.

It is an arithmetic number, because the mean of its divisors is an integer number (674653).

Almost surely, 2^12123150 is an apocalyptic number.

12123150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123150 is an abundant number, since it is smaller than the sum of its proper divisors (20260194).

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

12123150 is a wasteful number, since it uses less digits than its factorization.

12123150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6245 (or 6240 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12123150 is about 3481.8314146437. The cubic root of 12123150 is about 229.7233598970.

Adding to 12123150 its reverse (5132121), we get a palindrome (17255271).

The spelling of 12123150 in words is "twelve million, one hundred twenty-three thousand, one hundred fifty".