144402089 has 8 divisors (see below), whose sum is σ = 156210432. Its totient is φ = 132693840.

The previous prime is 144402077. The next prime is 144402091. The reversal of 144402089 is 980204441.

144402089 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 144402089 - 2¹² = 144397993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144402289) 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, 22007 + ... + 27804.

It is an arithmetic number, because the mean of its divisors is an integer number (19526304).

Almost surely, 2^144402089 is an apocalyptic number.

It is an amenable number.

144402089 is a deficient number, since it is larger than the sum of its proper divisors (11808343).

144402089 is a wasteful number, since it uses less digits than its factorization.

144402089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50047.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 144402089 is about 12016.7420293522. The cubic root of 144402089 is about 524.6356825433.

The spelling of 144402089 in words is "one hundred forty-four million, four hundred two thousand, eighty-nine".