144023121 has 12 divisors (see below), whose sum is σ = 226945680. Its totient is φ = 87286680.

The previous prime is 144023107. The next prime is 144023123. The reversal of 144023121 is 121320441.

It is not a de Polignac number, because 144023121 - 2²⁵ = 110468689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144023094 and 144023103.

It is not an unprimeable number, because it can be changed into a prime (144023123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 727291 + ... + 727488.

It is an arithmetic number, because the mean of its divisors is an integer number (18912140).

Almost surely, 2^144023121 is an apocalyptic number.

144023121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

144023121 is a deficient number, since it is larger than the sum of its proper divisors (82922559).

144023121 is a wasteful number, since it uses less digits than its factorization.

144023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454796 (or 1454793 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 144023121 is about 12000.9633363326. The cubic root of 144023121 is about 524.1763301932.

Adding to 144023121 its reverse (121320441), we get a palindrome (265343562).

The spelling of 144023121 in words is "one hundred forty-four million, twenty-three thousand, one hundred twenty-one".