142531552 has 48 divisors (see below), whose sum is σ = 302303232. Its totient is φ = 65957760.

The previous prime is 142531531. The next prime is 142531567. The reversal of 142531552 is 255135241.

It is a self number, because there is not a number n which added to its sum of digits gives 142531552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19693 + ... + 25939.

It is an arithmetic number, because the mean of its divisors is an integer number (6297984).

Almost surely, 2^142531552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142531552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151151616).

142531552 is an abundant number, since it is smaller than the sum of its proper divisors (159771680).

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

142531552 is a wasteful number, since it uses less digits than its factorization.

142531552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6311 (or 6303 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 142531552 is about 11938.6578810183. The cubic root of 142531552 is about 522.3605109817.

Adding to 142531552 its reverse (255135241), we get a palindrome (397666793).

The spelling of 142531552 in words is "one hundred forty-two million, five hundred thirty-one thousand, five hundred fifty-two".