144454613 has 4 divisors (see below), whose sum is σ = 146610720. Its totient is φ = 142298508.

The previous prime is 144454589. The next prime is 144454621. The reversal of 144454613 is 316454441.

144454613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 316454441 = 41 ⋅7718401.

It is a cyclic number.

It is not a de Polignac number, because 144454613 - 2²⁰ = 143406037 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 144454613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144454693) 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, 1077953 + ... + 1078086.

It is an arithmetic number, because the mean of its divisors is an integer number (36652680).

Almost surely, 2^144454613 is an apocalyptic number.

It is an amenable number.

144454613 is a deficient number, since it is larger than the sum of its proper divisors (2156107).

144454613 is an equidigital number, since it uses as much as digits as its factorization.

144454613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156106.

The product of its digits is 23040, while the sum is 32.

The square root of 144454613 is about 12018.9272815838. The cubic root of 144454613 is about 524.6992841723.

The spelling of 144454613 in words is "one hundred forty-four million, four hundred fifty-four thousand, six hundred thirteen".