144401603 has 4 divisors (see below), whose sum is σ = 144735528. Its totient is φ = 144067680.

The previous prime is 144401597. The next prime is 144401623. The reversal of 144401603 is 306104441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144401603 - 2¹⁶ = 144336067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144401623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166313 + ... + 167178.

It is an arithmetic number, because the mean of its divisors is an integer number (36183882).

Almost surely, 2^144401603 is an apocalyptic number.

144401603 is a deficient number, since it is larger than the sum of its proper divisors (333925).

144401603 is an equidigital number, since it uses as much as digits as its factorization.

144401603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333924.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 144401603 is about 12016.7218075480. The cubic root of 144401603 is about 524.6350939710.

The spelling of 144401603 in words is "one hundred forty-four million, four hundred one thousand, six hundred three".