142533720 has 192 divisors, whose sum is σ = 534193920. Its totient is φ = 32285952.

The previous prime is 142533701. The next prime is 142533733. The reversal of 142533720 is 27335241.

142533720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142533720² = 40631722674076800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 410587 + ... + 410933.

It is an arithmetic number, because the mean of its divisors is an integer number (2782260).

Almost surely, 2^142533720 is an apocalyptic number.

142533720 is a gapful number since it is divisible by the number (10) 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 142533720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267096960).

142533720 is an abundant number, since it is smaller than the sum of its proper divisors (391660200).

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

142533720 is a wasteful number, since it uses less digits than its factorization.

142533720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 142533720 is about 11938.7486781488. The cubic root of 142533720 is about 522.3631594522.

Adding to 142533720 its reverse (27335241), we get a palindrome (169868961).

The spelling of 142533720 in words is "one hundred forty-two million, five hundred thirty-three thousand, seven hundred twenty".