144113121 has 8 divisors (see below), whose sum is σ = 213500960. Its totient is φ = 96075396.

The previous prime is 144113117. The next prime is 144113153. The reversal of 144113121 is 121311441.

It is not a de Polignac number, because 144113121 - 2² = 144113117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144113094 and 144113103.

It is not an unprimeable number, because it can be changed into a prime (144114121) 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, 2668735 + ... + 2668788.

It is an arithmetic number, because the mean of its divisors is an integer number (26687620).

Almost surely, 2^144113121 is an apocalyptic number.

It is an amenable number.

144113121 is a deficient number, since it is larger than the sum of its proper divisors (69387839).

144113121 is an equidigital number, since it uses as much as digits as its factorization.

144113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337532 (or 5337526 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 144113121 is about 12004.7124497007. The cubic root of 144113121 is about 524.2854933286.

Adding to 144113121 its reverse (121311441), we get a palindrome (265424562).

The spelling of 144113121 in words is "one hundred forty-four million, one hundred thirteen thousand, one hundred twenty-one".