144470289 has 4 divisors (see below), whose sum is σ = 192627056. Its totient is φ = 96313524.

The previous prime is 144470273. The next prime is 144470317. The reversal of 144470289 is 982074441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 144470289 - 2⁴ = 144470273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144470269) 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 3 ways as a sum of consecutive naturals, for example, 24078379 + ... + 24078384.

It is an arithmetic number, because the mean of its divisors is an integer number (48156764).

Almost surely, 2^144470289 is an apocalyptic number.

It is an amenable number.

144470289 is a deficient number, since it is larger than the sum of its proper divisors (48156767).

144470289 is an equidigital number, since it uses as much as digits as its factorization.

144470289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48156766.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 144470289 is about 12019.5794019591. The cubic root of 144470289 is about 524.7182633480.

The spelling of 144470289 in words is "one hundred forty-four million, four hundred seventy thousand, two hundred eighty-nine".