12138350 has 48 divisors (see below), whose sum is σ = 26188800. Its totient is φ = 4099680.

The previous prime is 12138317. The next prime is 12138353. The reversal of 12138350 is 5383121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12138353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27431 + ... + 27869.

It is an arithmetic number, because the mean of its divisors is an integer number (545600).

Almost surely, 2^12138350 is an apocalyptic number.

12138350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12138350 is an abundant number, since it is smaller than the sum of its proper divisors (14050450).

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

12138350 is a wasteful number, since it uses less digits than its factorization.

12138350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 12138350 is about 3484.0134902150. The cubic root of 12138350 is about 229.8193288145.

The spelling of 12138350 in words is "twelve million, one hundred thirty-eight thousand, three hundred fifty".