144391042 has 8 divisors (see below), whose sum is σ = 216657216. Its totient is φ = 72171972.

The previous prime is 144391031. The next prime is 144391063. The reversal of 144391042 is 240193441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 144391042.

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 3 ways as a sum of consecutive naturals, for example, 2718 + ... + 17209.

It is an arithmetic number, because the mean of its divisors is an integer number (27082152).

Almost surely, 2^144391042 is an apocalyptic number.

144391042 is a deficient number, since it is larger than the sum of its proper divisors (72266174).

144391042 is a wasteful number, since it uses less digits than its factorization.

144391042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23552.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 144391042 is about 12016.2823701842. The cubic root of 144391042 is about 524.6223037013.

The spelling of 144391042 in words is "one hundred forty-four million, three hundred ninety-one thousand, forty-two".