144903 has 8 divisors (see below), whose sum is σ = 210816. Its totient is φ = 87800.

The previous prime is 144899. The next prime is 144917. The reversal of 144903 is 309441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144903 - 2² = 144899 is a prime.

144903 is a lucky number.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 144903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163 + ... + 2228.

It is an arithmetic number, because the mean of its divisors is an integer number (26352).

2¹⁴⁴⁹⁰³ is an apocalyptic number.

144903 is a deficient number, since it is larger than the sum of its proper divisors (65913).

144903 is a wasteful number, since it uses less digits than its factorization.

144903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 144903 is about 380.6612667451. The cubic root of 144903 is about 52.5241612146.

The spelling of 144903 in words is "one hundred forty-four thousand, nine hundred three".