145044105203 has 4 divisors (see below), whose sum is σ = 145231743888. Its totient is φ = 144856466520.

The previous prime is 145044105181. The next prime is 145044105251. The reversal of 145044105203 is 302501440541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145044105203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145044105253) 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, 93818183 + ... + 93819728.

It is an arithmetic number, because the mean of its divisors is an integer number (36307935972).

Almost surely, 2^145044105203 is an apocalyptic number.

145044105203 is a deficient number, since it is larger than the sum of its proper divisors (187638685).

145044105203 is an equidigital number, since it uses as much as digits as its factorization.

145044105203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187638684.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 145044105203 its reverse (302501440541), we get a palindrome (447545545744).

The spelling of 145044105203 in words is "one hundred forty-five billion, forty-four million, one hundred five thousand, two hundred three".