142243554 has 16 divisors (see below), whose sum is σ = 284712480. Its totient is φ = 47376960.

The previous prime is 142243547. The next prime is 142243567. The reversal of 142243554 is 455342241.

142243554 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 544 + ... + 16875.

It is an arithmetic number, because the mean of its divisors is an integer number (17794530).

Almost surely, 2^142243554 is an apocalyptic number.

142243554 is an abundant number, since it is smaller than the sum of its proper divisors (142468926).

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

142243554 is a wasteful number, since it uses less digits than its factorization.

142243554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18785.

The product of its digits is 19200, while the sum is 30.

The square root of 142243554 is about 11926.5902084376. The cubic root of 142243554 is about 522.0084480657.

Adding to 142243554 its reverse (455342241), we get a palindrome (597585795).

The spelling of 142243554 in words is "one hundred forty-two million, two hundred forty-three thousand, five hundred fifty-four".