12142405146 has 8 divisors (see below), whose sum is σ = 24284810304. Its totient is φ = 4047468380.

The previous prime is 12142405139. The next prime is 12142405189. The reversal of 12142405146 is 64150424121.

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

12142405146 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 1011867090 + ... + 1011867101.

It is an arithmetic number, because the mean of its divisors is an integer number (3035601288).

Almost surely, 2^12142405146 is an apocalyptic number.

12142405146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12142405146 is a wasteful number, since it uses less digits than its factorization.

12142405146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023734196.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 12142405146 its reverse (64150424121), we get a palindrome (76292829267).

The spelling of 12142405146 in words is "twelve billion, one hundred forty-two million, four hundred five thousand, one hundred forty-six".