12130550 has 36 divisors (see below), whose sum is σ = 23962380. Its totient is φ = 4556160.

The previous prime is 12130541. The next prime is 12130553. The reversal of 12130550 is 5503121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130553) 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 17 ways as a sum of consecutive naturals, for example, 107294 + ... + 107406.

Almost surely, 2^12130550 is an apocalyptic number.

12130550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12130550 is a deficient number, since it is larger than the sum of its proper divisors (11831830).

12130550 is a wasteful number, since it uses less digits than its factorization.

12130550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 12130550 is about 3482.8939116775. The cubic root of 12130550 is about 229.7700916208.

Adding to 12130550 its reverse (5503121), we get a palindrome (17633671).

The spelling of 12130550 in words is "twelve million, one hundred thirty thousand, five hundred fifty".