144033021 has 24 divisors (see below), whose sum is σ = 229099104. Its totient is φ = 86470560.

The previous prime is 144032981. The next prime is 144033023. The reversal of 144033021 is 120330441.

It is not a de Polignac number, because 144033021 - 2⁷ = 144032893 is a prime.

It is a super-2 number, since 2×144033021² = 41491022276772882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144032985 and 144033003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144033023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3795 + ... + 17391.

It is an arithmetic number, because the mean of its divisors is an integer number (9545796).

Almost surely, 2^144033021 is an apocalyptic number.

144033021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144033021 is a deficient number, since it is larger than the sum of its proper divisors (85066083).

144033021 is a wasteful number, since it uses less digits than its factorization.

144033021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13721 (or 13718 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 144033021 is about 12001.3757961327. The cubic root of 144033021 is about 524.1883403638.

Adding to 144033021 its reverse (120330441), we get a palindrome (264363462).

It can be divided in two parts, 14403 and 3021, that added together give a square (17424 = 132²).

The spelling of 144033021 in words is "one hundred forty-four million, thirty-three thousand, twenty-one".