142055544 has 96 divisors (see below), whose sum is σ = 379048320. Its totient is φ = 44349888.

The previous prime is 142055513. The next prime is 142055549. The reversal of 142055544 is 445550241.

142055544 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 2×142055544² = 40359555162271872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142055549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 850549 + ... + 850715.

It is an arithmetic number, because the mean of its divisors is an integer number (3948420).

Almost surely, 2^142055544 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 142055544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189524160).

142055544 is an abundant number, since it is smaller than the sum of its proper divisors (236992776).

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

142055544 is a wasteful number, since it uses less digits than its factorization.

142055544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 142055544 is about 11918.7056344219. The cubic root of 142055544 is about 521.7783589514.

The spelling of 142055544 in words is "one hundred forty-two million, fifty-five thousand, five hundred forty-four".