144117542 has 8 divisors (see below), whose sum is σ = 221449032. Its totient is φ = 70301200.

The previous prime is 144117503. The next prime is 144117577. The reversal of 144117542 is 245711441.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 878684 + ... + 878847.

It is an arithmetic number, because the mean of its divisors is an integer number (27681129).

Almost surely, 2^144117542 is an apocalyptic number.

144117542 is a deficient number, since it is larger than the sum of its proper divisors (77331490).

144117542 is a wasteful number, since it uses less digits than its factorization.

144117542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757574.

The product of its digits is 4480, while the sum is 29.

The square root of 144117542 is about 12004.8965843109. The cubic root of 144117542 is about 524.2908544932.

Adding to 144117542 its reverse (245711441), we get a palindrome (389828983).

The spelling of 144117542 in words is "one hundred forty-four million, one hundred seventeen thousand, five hundred forty-two".