144247542 has 16 divisors (see below), whose sum is σ = 295204800. Its totient is φ = 46964232.

The previous prime is 144247531. The next prime is 144247561. The reversal of 144247542 is 245742441.

It is a congruent number.

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, 279292 + ... + 279807.

It is an arithmetic number, because the mean of its divisors is an integer number (18450300).

Almost surely, 2^144247542 is an apocalyptic number.

144247542 is an abundant number, since it is smaller than the sum of its proper divisors (150957258).

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

144247542 is a wasteful number, since it uses less digits than its factorization.

144247542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559147.

The product of its digits is 35840, while the sum is 33.

The square root of 144247542 is about 12010.3098211495. The cubic root of 144247542 is about 524.4484511481.

Adding to 144247542 its reverse (245742441), we get a palindrome (389989983).

It can be divided in two parts, 1442 and 47542, that added together give a palindrome (48984).

The spelling of 144247542 in words is "one hundred forty-four million, two hundred forty-seven thousand, five hundred forty-two".