142904544 has 72 divisors (see below), whose sum is σ = 387865800. Its totient is φ = 46068480.

The previous prime is 142904539. The next prime is 142904561. The reversal of 142904544 is 445409241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91482 + ... + 93030.

It is an arithmetic number, because the mean of its divisors is an integer number (5387025).

Almost surely, 2^142904544 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 142904544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193932900).

142904544 is an abundant number, since it is smaller than the sum of its proper divisors (244961256).

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

142904544 is a wasteful number, since it uses less digits than its factorization.

142904544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624 (or 1585 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 142904544 is about 11954.2688609551. The cubic root of 142904544 is about 522.8157706053.

The spelling of 142904544 in words is "one hundred forty-two million, nine hundred four thousand, five hundred forty-four".