144102403 has 4 divisors (see below), whose sum is σ = 151686760. Its totient is φ = 136518048.

The previous prime is 144102401. The next prime is 144102419. The reversal of 144102403 is 304201441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304201441 = 7219 ⋅42139.

It is a cyclic number.

It is not a de Polignac number, because 144102403 - 2¹ = 144102401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 7584337 = 144102403 / (1 + 4 + 4 + 1 + 0 + 2 + 4 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144102401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3792150 + ... + 3792187.

It is an arithmetic number, because the mean of its divisors is an integer number (37921690).

Almost surely, 2^144102403 is an apocalyptic number.

144102403 is a deficient number, since it is larger than the sum of its proper divisors (7584357).

144102403 is an equidigital number, since it uses as much as digits as its factorization.

144102403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7584356.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 144102403 is about 12004.2660333733. The cubic root of 144102403 is about 524.2724955965.

Adding to 144102403 its reverse (304201441), we get a palindrome (448303844).

The spelling of 144102403 in words is "one hundred forty-four million, one hundred two thousand, four hundred three".