144135732 has 24 divisors (see below), whose sum is σ = 362187616. Its totient is φ = 44349408.

The previous prime is 144135731. The next prime is 144135811. The reversal of 144135732 is 237531441.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 144135732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144135731) by changing a digit.

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, 461818 + ... + 462129.

Almost surely, 2^144135732 is an apocalyptic number.

144135732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144135732 is an abundant number, since it is smaller than the sum of its proper divisors (218051884).

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

144135732 is a wasteful number, since it uses less digits than its factorization.

144135732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923967 (or 923965 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 144135732 is about 12005.6541679327. The cubic root of 144135732 is about 524.3129116032.

It can be divided in two parts, 1441 and 35732, that added together give a palindrome (37173).

The spelling of 144135732 in words is "one hundred forty-four million, one hundred thirty-five thousand, seven hundred thirty-two".