12148439 has 8 divisors (see below), whose sum is σ = 12779520. Its totient is φ = 11525976.

The previous prime is 12148397. The next prime is 12148453. The reversal of 12148439 is 93484121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12148439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12148639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842 + ... + 5000.

It is an arithmetic number, because the mean of its divisors is an integer number (1597440).

Almost surely, 2^12148439 is an apocalyptic number.

12148439 is a deficient number, since it is larger than the sum of its proper divisors (631081).

12148439 is a wasteful number, since it uses less digits than its factorization.

12148439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309.

The product of its digits is 6912, while the sum is 32.

The square root of 12148439 is about 3485.4610885792. The cubic root of 12148439 is about 229.8829839546.

The spelling of 12148439 in words is "twelve million, one hundred forty-eight thousand, four hundred thirty-nine".