144476489 has 8 divisors (see below), whose sum is σ = 154330920. Its totient is φ = 134772736.

The previous prime is 144476483. The next prime is 144476491. The reversal of 144476489 is 984674441.

It can be written as a sum of positive squares in 4 ways, for example, as 30691600 + 113784889 = 5540^2 + 10667^2 .

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

It is not a de Polignac number, because 144476489 - 2⁴ = 144476473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144476483) 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, 35684 + ... + 39525.

It is an arithmetic number, because the mean of its divisors is an integer number (19291365).

Almost surely, 2^144476489 is an apocalyptic number.

It is an amenable number.

144476489 is a deficient number, since it is larger than the sum of its proper divisors (9854431).

144476489 is a wasteful number, since it uses less digits than its factorization.

144476489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75339.

The product of its digits is 774144, while the sum is 47.

The square root of 144476489 is about 12019.8373117110. The cubic root of 144476489 is about 524.7257694051.

The spelling of 144476489 in words is "one hundred forty-four million, four hundred seventy-six thousand, four hundred eighty-nine".