142081184 has 144 divisors (see below), whose sum is σ = 349332480. Its totient is φ = 56609280.

The previous prime is 142081169. The next prime is 142081201. The reversal of 142081184 is 481180241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1798457 + ... + 1798535.

It is an arithmetic number, because the mean of its divisors is an integer number (2425920).

Almost surely, 2^142081184 is an apocalyptic number.

142081184 is a gapful number since it is divisible by the number (14) 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 142081184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174666240).

142081184 is an abundant number, since it is smaller than the sum of its proper divisors (207251296).

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

142081184 is a wasteful number, since it uses less digits than its factorization.

142081184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 142081184 is about 11919.7812060457. The cubic root of 142081184 is about 521.8097494717.

The spelling of 142081184 in words is "one hundred forty-two million, eighty-one thousand, one hundred eighty-four".