144489557 has 8 divisors (see below), whose sum is σ = 147379584. Its totient is φ = 141624288.

The previous prime is 144489529. The next prime is 144489559. The reversal of 144489557 is 755984441.

It is a happy number.

144489557 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 144489557 - 2⁶ = 144489493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144489559) 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, 5828 + ... + 17970.

It is an arithmetic number, because the mean of its divisors is an integer number (18422448).

Almost surely, 2^144489557 is an apocalyptic number.

It is an amenable number.

144489557 is a deficient number, since it is larger than the sum of its proper divisors (2890027).

144489557 is a wasteful number, since it uses less digits than its factorization.

144489557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12379.

The product of its digits is 806400, while the sum is 47.

The square root of 144489557 is about 12020.3809007868. The cubic root of 144489557 is about 524.7415895330.

The spelling of 144489557 in words is "one hundred forty-four million, four hundred eighty-nine thousand, five hundred fifty-seven".