12139848 has 192 divisors, whose sum is σ = 41587200. Its totient is φ = 3265920.

The previous prime is 12139847. The next prime is 12139849. The reversal of 12139848 is 84893121.

12139848 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12139847) and next prime (12139849).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12139847) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328086 + ... + 328122.

It is an arithmetic number, because the mean of its divisors is an integer number (216600).

Almost surely, 2^12139848 is an apocalyptic number.

12139848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12139848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20793600).

12139848 is an abundant number, since it is smaller than the sum of its proper divisors (29447352).

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

12139848 is a wasteful number, since it uses less digits than its factorization.

12139848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 80 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 12139848 is about 3484.2284655286. The cubic root of 12139848 is about 229.8287824661.

The spelling of 12139848 in words is "twelve million, one hundred thirty-nine thousand, eight hundred forty-eight".