144315889 has 4 divisors (see below), whose sum is σ = 145180224. Its totient is φ = 143451556.

The previous prime is 144315883. The next prime is 144315911. The reversal of 144315889 is 988513441.

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, and also an emirpimes, since its reverse is a distinct semiprime: 988513441 = 53 ⋅18651197.

It is a cyclic number.

It is not a de Polignac number, because 144315889 - 2⁷ = 144315761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144315883) 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 3 ways as a sum of consecutive naturals, for example, 431917 + ... + 432250.

It is an arithmetic number, because the mean of its divisors is an integer number (36295056).

Almost surely, 2^144315889 is an apocalyptic number.

It is an amenable number.

144315889 is a deficient number, since it is larger than the sum of its proper divisors (864335).

144315889 is an equidigital number, since it uses as much as digits as its factorization.

144315889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864334.

The product of its digits is 138240, while the sum is 43.

The square root of 144315889 is about 12013.1548312673. The cubic root of 144315889 is about 524.5312690089.

The spelling of 144315889 in words is "one hundred forty-four million, three hundred fifteen thousand, eight hundred eighty-nine".