144005813 has 8 divisors (see below), whose sum is σ = 169026432. Its totient is φ = 120097296.

The previous prime is 144005779. The next prime is 144005833. The reversal of 144005813 is 318500441.

144005813 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 144005813 - 2⁸ = 144005557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144005833) 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, 277745 + ... + 278262.

It is an arithmetic number, because the mean of its divisors is an integer number (21128304).

Almost surely, 2^144005813 is an apocalyptic number.

It is an amenable number.

144005813 is a deficient number, since it is larger than the sum of its proper divisors (25020619).

144005813 is an equidigital number, since it uses as much as digits as its factorization.

144005813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556051.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 144005813 is about 12000.2422058890. The cubic root of 144005813 is about 524.1553316958.

The spelling of 144005813 in words is "one hundred forty-four million, five thousand, eight hundred thirteen".