12140524158 has 64 divisors (see below), whose sum is σ = 28169856000. Its totient is φ = 3416313600.

The previous prime is 12140524147. The next prime is 12140524163. The reversal of 12140524158 is 85142504121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4414968 + ... + 4417716.

It is an arithmetic number, because the mean of its divisors is an integer number (440154000).

Almost surely, 2^12140524158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12140524158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14084928000).

12140524158 is an abundant number, since it is smaller than the sum of its proper divisors (16029331842).

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

12140524158 is a wasteful number, since it uses less digits than its factorization.

12140524158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313.

The product of its (nonzero) digits is 12800, while the sum is 33.

The spelling of 12140524158 in words is "twelve billion, one hundred forty million, five hundred twenty-four thousand, one hundred fifty-eight".