144341989 has 6 divisors (see below), whose sum is σ = 158657030. Its totient is φ = 131219880.

The previous prime is 144341987. The next prime is 144341999. The reversal of 144341989 is 989143441.

It can be written as a sum of positive squares in only one way, i.e., 134165889 + 10176100 = 11583^2 + 3190^2 .

It is not a de Polignac number, because 144341989 - 2¹ = 144341987 is a prime.

It is a super-2 number, since 2×144341989² = 41669219576952242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144341987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 596334 + ... + 596575.

Almost surely, 2^144341989 is an apocalyptic number.

It is an amenable number.

144341989 is a deficient number, since it is larger than the sum of its proper divisors (14315041).

144341989 is a wasteful number, since it uses less digits than its factorization.

144341989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192931 (or 1192920 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 144341989 is about 12014.2410913049. The cubic root of 144341989 is about 524.5628881674.

The spelling of 144341989 in words is "one hundred forty-four million, three hundred forty-one thousand, nine hundred eighty-nine".