144957489 has 8 divisors (see below), whose sum is σ = 193332480. Its totient is φ = 96610416.

The previous prime is 144957473. The next prime is 144957493. The reversal of 144957489 is 984759441.

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

It is not a de Polignac number, because 144957489 - 2⁴ = 144957473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144957389) 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, 15307 + ... + 22895.

It is an arithmetic number, because the mean of its divisors is an integer number (24166560).

Almost surely, 2^144957489 is an apocalyptic number.

It is an amenable number.

144957489 is a deficient number, since it is larger than the sum of its proper divisors (48374991).

144957489 is an equidigital number, since it uses as much as digits as its factorization.

144957489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13959.

The product of its digits is 1451520, while the sum is 51.

The square root of 144957489 is about 12039.8292761982. The cubic root of 144957489 is about 525.3074407887.

The spelling of 144957489 in words is "one hundred forty-four million, nine hundred fifty-seven thousand, four hundred eighty-nine".