12052145142 has 16 divisors (see below), whose sum is σ = 26782544880. Its totient is φ = 4017381696.

The previous prime is 12052145137. The next prime is 12052145159. The reversal of 12052145142 is 24154125021.

It is a happy number.

12052145142 is a `hidden beast` number, since 1 + 205 + 2 + 1 + 451 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111593883 + ... + 111593990.

It is an arithmetic number, because the mean of its divisors is an integer number (1673909055).

Almost surely, 2^12052145142 is an apocalyptic number.

12052145142 is an abundant number, since it is smaller than the sum of its proper divisors (14730399738).

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

12052145142 is a wasteful number, since it uses less digits than its factorization.

12052145142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223187884 (or 223187878 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 12052145142 in words is "twelve billion, fifty-two million, one hundred forty-five thousand, one hundred forty-two".