144121 has 4 divisors (see below), whose sum is σ = 145152. Its totient is φ = 143092.

The previous prime is 144103. The next prime is 144139. The reversal of 144121 is 121441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (144103) and next prime (144139).

It is a cyclic number.

It is not a de Polignac number, because 144121 - 2⁹ = 143609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265 + ... + 598.

It is an arithmetic number, because the mean of its divisors is an integer number (36288).

2¹⁴⁴¹²¹ is an apocalyptic number.

It is an amenable number.

144121 is a deficient number, since it is larger than the sum of its proper divisors (1031).

144121 is an equidigital number, since it uses as much as digits as its factorization.

144121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030.

The product of its digits is 32, while the sum is 13.

The square root of 144121 is about 379.6327172413. The cubic root of 144121 is about 52.4295047791.

Adding to 144121 its reverse (121441), we get a palindrome (265562).

It can be divided in two parts, 144 and 121, that multiplied together give a square (17424 = 132²).

The spelling of 144121 in words is "one hundred forty-four thousand, one hundred twenty-one", and thus it is an iban number.