142180668 has 72 divisors (see below), whose sum is σ = 414462048. Its totient is φ = 40255488.

The previous prime is 142180631. The next prime is 142180669. The reversal of 142180668 is 866081241.

142180668 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

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

142180668 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142180669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25980 + ... + 30972.

Almost surely, 2^142180668 is an apocalyptic number.

142180668 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 142180668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207231024).

142180668 is an abundant number, since it is smaller than the sum of its proper divisors (272281380).

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

142180668 is a wasteful number, since it uses less digits than its factorization.

142180668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123 (or 5118 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 142180668 is about 11923.9535389903. The cubic root of 142180668 is about 521.9315099289.

The spelling of 142180668 in words is "one hundred forty-two million, one hundred eighty thousand, six hundred sixty-eight".