144121413 has 4 divisors (see below), whose sum is σ = 192161888. Its totient is φ = 96080940.

The previous prime is 144121357. The next prime is 144121433. The reversal of 144121413 is 314121441.

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.

It is not a de Polignac number, because 144121413 - 2⁸ = 144121157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144121413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144121433) 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 3 ways as a sum of consecutive naturals, for example, 24020233 + ... + 24020238.

It is an arithmetic number, because the mean of its divisors is an integer number (48040472).

Almost surely, 2^144121413 is an apocalyptic number.

It is an amenable number.

144121413 is a deficient number, since it is larger than the sum of its proper divisors (48040475).

144121413 is an equidigital number, since it uses as much as digits as its factorization.

144121413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48040474.

The product of its digits is 384, while the sum is 21.

The square root of 144121413 is about 12005.0578091070. The cubic root of 144121413 is about 524.2955486054.

Adding to 144121413 its reverse (314121441), we get a palindrome (458242854).

The spelling of 144121413 in words is "one hundred forty-four million, one hundred twenty-one thousand, four hundred thirteen".