144120113 has 4 divisors (see below), whose sum is σ = 144506868. Its totient is φ = 143733360.

The previous prime is 144120089. The next prime is 144120157. The reversal of 144120113 is 311021441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24720784 + 119399329 = 4972^2 + 10927^2 .

It is a cyclic number.

It is not a de Polignac number, because 144120113 - 2⁶ = 144120049 is a prime.

It is a super-2 number, since 2×144120113² = 41541213942265538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144120091 and 144120100.

It is not an unprimeable number, because it can be changed into a prime (144120173) 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, 192818 + ... + 193563.

It is an arithmetic number, because the mean of its divisors is an integer number (36126717).

Almost surely, 2^144120113 is an apocalyptic number.

It is an amenable number.

144120113 is a deficient number, since it is larger than the sum of its proper divisors (386755).

144120113 is an equidigital number, since it uses as much as digits as its factorization.

144120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386754.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 144120113 is about 12005.0036651390. The cubic root of 144120113 is about 524.2939721885.

Adding to 144120113 its reverse (311021441), we get a palindrome (455141554).

The spelling of 144120113 in words is "one hundred forty-four million, one hundred twenty thousand, one hundred thirteen".