142054428 has 12 divisors (see below), whose sum is σ = 331460360. Its totient is φ = 47351472.

The previous prime is 142054427. The next prime is 142054459. The reversal of 142054428 is 824450241.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 142054395 and 142054404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142054427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5918923 + ... + 5918946.

Almost surely, 2^142054428 is an apocalyptic number.

It is an amenable number.

142054428 is an abundant number, since it is smaller than the sum of its proper divisors (189405932).

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

142054428 is a wasteful number, since it uses less digits than its factorization.

142054428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11837876 (or 11837874 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 142054428 is about 11918.6588171656. The cubic root of 142054428 is about 521.7769925699.

The spelling of 142054428 in words is "one hundred forty-two million, fifty-four thousand, four hundred twenty-eight".