144121313 has 8 divisors (see below), whose sum is σ = 165631680. Its totient is φ = 122841360.

The previous prime is 144121309. The next prime is 144121321. The reversal of 144121313 is 313121441.

144121313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144121313 - 2² = 144121309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144121303) 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, 56258 + ... + 58763.

It is an arithmetic number, because the mean of its divisors is an integer number (20703960).

Almost surely, 2^144121313 is an apocalyptic number.

It is an amenable number.

144121313 is a deficient number, since it is larger than the sum of its proper divisors (21510367).

144121313 is a wasteful number, since it uses less digits than its factorization.

144121313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115207.

The product of its digits is 288, while the sum is 20.

The square root of 144121313 is about 12005.0536441950. The cubic root of 144121313 is about 524.2954273429.

Adding to 144121313 its reverse (313121441), we get a palindrome (457242754).

The spelling of 144121313 in words is "one hundred forty-four million, one hundred twenty-one thousand, three hundred thirteen".