142668012 has 48 divisors (see below), whose sum is σ = 354533760. Its totient is φ = 44497152.

The previous prime is 142668007. The next prime is 142668013. The reversal of 142668012 is 210866241.

It is a super-3 number, since 3×142668012³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (142668013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34563 + ... + 38469.

It is an arithmetic number, because the mean of its divisors is an integer number (7386120).

Almost surely, 2^142668012 is an apocalyptic number.

142668012 is a gapful number since it is divisible by the number (12) 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 142668012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177266880).

142668012 is an abundant number, since it is smaller than the sum of its proper divisors (211865748).

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

142668012 is a wasteful number, since it uses less digits than its factorization.

142668012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4110 (or 4108 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 142668012 is about 11944.3715615347. The cubic root of 142668012 is about 522.5271608173.

The spelling of 142668012 in words is "one hundred forty-two million, six hundred sixty-eight thousand, twelve".