142052544 has 168 divisors, whose sum is σ = 438637680. Its totient is φ = 43794432.

The previous prime is 142052513. The next prime is 142052551. The reversal of 142052544 is 445250241.

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, 871407 + ... + 871569.

Almost surely, 2^142052544 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 142052544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219318840).

142052544 is an abundant number, since it is smaller than the sum of its proper divisors (296585136).

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

142052544 is a wasteful number, since it uses less digits than its factorization.

142052544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 142052544 is about 11918.5797811652. The cubic root of 142052544 is about 521.7746858668.

The spelling of 142052544 in words is "one hundred forty-two million, fifty-two thousand, five hundred forty-four".