12124550 has 12 divisors (see below), whose sum is σ = 22551756. Its totient is φ = 4849800.

The previous prime is 12124549. The next prime is 12124571. The reversal of 12124550 is 5542121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121196 + ... + 121295.

It is an arithmetic number, because the mean of its divisors is an integer number (1879313).

Almost surely, 2^12124550 is an apocalyptic number.

12124550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12124550 is a deficient number, since it is larger than the sum of its proper divisors (10427206).

12124550 is a wasteful number, since it uses less digits than its factorization.

12124550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242503 (or 242498 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 12124550 is about 3482.0324524622. The cubic root of 12124550 is about 229.7322024922.

Adding to 12124550 its reverse (5542121), we get a palindrome (17666671).

The spelling of 12124550 in words is "twelve million, one hundred twenty-four thousand, five hundred fifty".