142017750 has 192 divisors, whose sum is σ = 448561152. Its totient is φ = 31752000.

The previous prime is 142017749. The next prime is 142017767. The reversal of 142017750 is 57710241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1118187 + ... + 1118313.

It is an arithmetic number, because the mean of its divisors is an integer number (2336256).

Almost surely, 2^142017750 is an apocalyptic number.

142017750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142017750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224280576).

142017750 is an abundant number, since it is smaller than the sum of its proper divisors (306543402).

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

142017750 is a wasteful number, since it uses less digits than its factorization.

142017750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 142017750 is about 11917.1200379958. The cubic root of 142017750 is about 521.7320816530.

Adding to 142017750 its reverse (57710241), we get a palindrome (199727991).

The spelling of 142017750 in words is "one hundred forty-two million, seventeen thousand, seven hundred fifty".