144420545 has 8 divisors (see below), whose sum is σ = 173418624. Its totient is φ = 115460464.

The previous prime is 144420541. The next prime is 144420547. The reversal of 144420545 is 545024441.

144420545 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 144420545 - 2² = 144420541 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144420541) 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, 329 + ... + 16998.

It is an arithmetic number, because the mean of its divisors is an integer number (21677328).

Almost surely, 2^144420545 is an apocalyptic number.

It is an amenable number.

144420545 is a deficient number, since it is larger than the sum of its proper divisors (28998079).

144420545 is a wasteful number, since it uses less digits than its factorization.

144420545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18999.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 144420545 is about 12017.5099334263. The cubic root of 144420545 is about 524.6580327825.

Adding to 144420545 its reverse (545024441), we get a palindrome (689444986).

The spelling of 144420545 in words is "one hundred forty-four million, four hundred twenty thousand, five hundred forty-five".