144105403 has 4 divisors (see below), whose sum is σ = 155190448. Its totient is φ = 133020360.

The previous prime is 144105389. The next prime is 144105421. The reversal of 144105403 is 304501441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304501441 = 163 ⋅1868107.

It is a cyclic number.

It is not a de Polignac number, because 144105403 - 2¹³ = 144097211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144105473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5542503 + ... + 5542528.

It is an arithmetic number, because the mean of its divisors is an integer number (38797612).

Almost surely, 2^144105403 is an apocalyptic number.

144105403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

144105403 is a deficient number, since it is larger than the sum of its proper divisors (11085045).

144105403 is a wasteful number, since it uses less digits than its factorization.

144105403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11085044.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 144105403 is about 12004.3909883009. The cubic root of 144105403 is about 524.2761337652.

Adding to 144105403 its reverse (304501441), we get a palindrome (448606844).

The spelling of 144105403 in words is "one hundred forty-four million, one hundred five thousand, four hundred three".