12148238 has 4 divisors (see below), whose sum is σ = 18222360. Its totient is φ = 6074118.

The previous prime is 12148229. The next prime is 12148243. The reversal of 12148238 is 83284121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83284121 = 1889 ⋅44089.

It is a self number, because there is not a number n which added to its sum of digits gives 12148238.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3037058 + ... + 3037061.

It is an arithmetic number, because the mean of its divisors is an integer number (4555590).

Almost surely, 2^12148238 is an apocalyptic number.

12148238 is a deficient number, since it is larger than the sum of its proper divisors (6074122).

12148238 is an equidigital number, since it uses as much as digits as its factorization.

12148238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6074121.

The product of its digits is 3072, while the sum is 29.

The square root of 12148238 is about 3485.4322543983. The cubic root of 12148238 is about 229.8817161173.

The spelling of 12148238 in words is "twelve million, one hundred forty-eight thousand, two hundred thirty-eight".