144055021 has 8 divisors (see below), whose sum is σ = 157248000. Its totient is φ = 130878240.

The previous prime is 144055001. The next prime is 144055033. The reversal of 144055021 is 120550441.

144055021 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 a cyclic number.

It is not a de Polignac number, because 144055021 - 2⁷ = 144054893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144054983 and 144055001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144055001) 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, 21705 + ... + 27553.

It is an arithmetic number, because the mean of its divisors is an integer number (19656000).

Almost surely, 2^144055021 is an apocalyptic number.

144055021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144055021 is a deficient number, since it is larger than the sum of its proper divisors (13192979).

144055021 is a wasteful number, since it uses less digits than its factorization.

144055021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8099.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 144055021 is about 12002.2923227190. The cubic root of 144055021 is about 524.2150276616.

The spelling of 144055021 in words is "one hundred forty-four million, fifty-five thousand, twenty-one".