143255442 has 16 divisors (see below), whose sum is σ = 312557472. Its totient is φ = 43410720.

The previous prime is 143255429. The next prime is 143255467. The reversal of 143255442 is 244552341.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1085203 + ... + 1085334.

It is an arithmetic number, because the mean of its divisors is an integer number (19534842).

Almost surely, 2^143255442 is an apocalyptic number.

143255442 is an abundant number, since it is smaller than the sum of its proper divisors (169302030).

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

143255442 is a wasteful number, since it uses less digits than its factorization.

143255442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170553.

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

The square root of 143255442 is about 11968.9365442382. The cubic root of 143255442 is about 523.2433405329.

The spelling of 143255442 in words is "one hundred forty-three million, two hundred fifty-five thousand, four hundred forty-two".