144103821 has 8 divisors (see below), whose sum is σ = 194570880. Its totient is φ = 94852992.

The previous prime is 144103811. The next prime is 144103823. The reversal of 144103821 is 128301441.

144103821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 144103821 - 2¹¹ = 144101773 is a prime.

It is a super-2 number, since 2×144103821² = 41531822453600082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144103791 and 144103800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144103823) 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, 303780 + ... + 304253.

It is an arithmetic number, because the mean of its divisors is an integer number (24321360).

Almost surely, 2^144103821 is an apocalyptic number.

It is an amenable number.

144103821 is a deficient number, since it is larger than the sum of its proper divisors (50467059).

144103821 is an equidigital number, since it uses as much as digits as its factorization.

144103821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608115.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 144103821 is about 12004.3250955645. The cubic root of 144103821 is about 524.2742152439.

The spelling of 144103821 in words is "one hundred forty-four million, one hundred three thousand, eight hundred twenty-one".