144131989 has 8 divisors (see below), whose sum is σ = 149007872. Its totient is φ = 139270320.

The previous prime is 144131987. The next prime is 144131993. The reversal of 144131989 is 989131441.

144131989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 144131989 - 2¹ = 144131987 is a prime.

It is a super-2 number, since 2×144131989² = 41548060506192242, 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 (144131987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19552 + ... + 25894.

It is an arithmetic number, because the mean of its divisors is an integer number (18625984).

Almost surely, 2^144131989 is an apocalyptic number.

It is an amenable number.

144131989 is a deficient number, since it is larger than the sum of its proper divisors (4875883).

144131989 is an equidigital number, since it uses as much as digits as its factorization.

144131989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7107.

The product of its digits is 31104, while the sum is 40.

The square root of 144131989 is about 12005.4982820373. The cubic root of 144131989 is about 524.3083730103.

The spelling of 144131989 in words is "one hundred forty-four million, one hundred thirty-one thousand, nine hundred eighty-nine".