144140534 has 16 divisors (see below), whose sum is σ = 219137616. Its totient is φ = 71100000.

The previous prime is 144140533. The next prime is 144140561. The reversal of 144140534 is 435041441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144140531) 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, 62909 + ... + 65159.

It is an arithmetic number, because the mean of its divisors is an integer number (13696101).

Almost surely, 2^144140534 is an apocalyptic number.

144140534 is a deficient number, since it is larger than the sum of its proper divisors (74997082).

144140534 is a wasteful number, since it uses less digits than its factorization.

144140534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 144140534 is about 12005.8541553694. The cubic root of 144140534 is about 524.3187341766.

Adding to 144140534 its reverse (435041441), we get a palindrome (579181975).

The spelling of 144140534 in words is "one hundred forty-four million, one hundred forty thousand, five hundred thirty-four".