144949539 has 8 divisors (see below), whose sum is σ = 220875520. Its totient is φ = 82828296.

The previous prime is 144949523. The next prime is 144949547. The reversal of 144949539 is 935949441.

It is a happy number.

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

It is not a de Polignac number, because 144949539 - 2⁴ = 144949523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144949559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3451159 + ... + 3451200.

It is an arithmetic number, because the mean of its divisors is an integer number (27609440).

Almost surely, 2^144949539 is an apocalyptic number.

144949539 is a deficient number, since it is larger than the sum of its proper divisors (75925981).

144949539 is an equidigital number, since it uses as much as digits as its factorization.

144949539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6902369.

The product of its digits is 699840, while the sum is 48.

The square root of 144949539 is about 12039.4991174882. The cubic root of 144949539 is about 525.2978373514.

The spelling of 144949539 in words is "one hundred forty-four million, nine hundred forty-nine thousand, five hundred thirty-nine".