144138047 has 8 divisors (see below), whose sum is σ = 152166000. Its totient is φ = 136154304.

The previous prime is 144138031. The next prime is 144138067. The reversal of 144138047 is 740831441.

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

It is not a de Polignac number, because 144138047 - 2⁴ = 144138031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144138067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4238 + ... + 17499.

It is an arithmetic number, because the mean of its divisors is an integer number (19020750).

Almost surely, 2^144138047 is an apocalyptic number.

144138047 is a deficient number, since it is larger than the sum of its proper divisors (8027953).

144138047 is a wasteful number, since it uses less digits than its factorization.

144138047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22105.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 144138047 is about 12005.7505804510. The cubic root of 144138047 is about 524.3157186284.

Adding to 144138047 its reverse (740831441), we get a palindrome (884969488).

The spelling of 144138047 in words is "one hundred forty-four million, one hundred thirty-eight thousand, forty-seven".