144008003 has 4 divisors (see below), whose sum is σ = 152479080. Its totient is φ = 135536928.

The previous prime is 144007999. The next prime is 144008009. The reversal of 144008003 is 300800441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300800441 = 29 ⋅10372429.

It is a cyclic number.

It is not a de Polignac number, because 144008003 - 2² = 144007999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144008009) 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, 4235513 + ... + 4235546.

It is an arithmetic number, because the mean of its divisors is an integer number (38119770).

Almost surely, 2^144008003 is an apocalyptic number.

144008003 is a deficient number, since it is larger than the sum of its proper divisors (8471077).

144008003 is an equidigital number, since it uses as much as digits as its factorization.

144008003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8471076.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 144008003 is about 12000.3334537004. Note that the first 3 decimals coincide. The cubic root of 144008003 is about 524.1579887514.

Adding to 144008003 its reverse (300800441), we get a palindrome (444808444).

The spelling of 144008003 in words is "one hundred forty-four million, eight thousand, three".