144902 has 8 divisors (see below), whose sum is σ = 221616. Its totient is φ = 71032.

The previous prime is 144899. The next prime is 144917. The reversal of 144902 is 209441.

144902 = 24² + 25² + ... + 76².

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578 + ... + 789.

It is an arithmetic number, because the mean of its divisors is an integer number (27702).

2¹⁴⁴⁹⁰² is an apocalyptic number.

144902 is a deficient number, since it is larger than the sum of its proper divisors (76714).

144902 is a wasteful number, since it uses less digits than its factorization.

144902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 144902 is about 380.6599532391. The cubic root of 144902 is about 52.5240403883.

The spelling of 144902 in words is "one hundred forty-four thousand, nine hundred two".