144920433 has 8 divisors (see below), whose sum is σ = 220831168. Its totient is φ = 82811664.

The previous prime is 144920431. The next prime is 144920441. The reversal of 144920433 is 334029441.

144920433 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 not a de Polignac number, because 144920433 - 2¹ = 144920431 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 144920433.

It is not an unprimeable number, because it can be changed into a prime (144920431) 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, 3450466 + ... + 3450507.

It is an arithmetic number, because the mean of its divisors is an integer number (27603896).

Almost surely, 2^144920433 is an apocalyptic number.

It is an amenable number.

144920433 is a deficient number, since it is larger than the sum of its proper divisors (75910735).

144920433 is an equidigital number, since it uses as much as digits as its factorization.

144920433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900983.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 144920433 is about 12038.2902855846. The cubic root of 144920433 is about 525.2626749023.

Adding to 144920433 its reverse (334029441), we get a palindrome (478949874).

The spelling of 144920433 in words is "one hundred forty-four million, nine hundred twenty thousand, four hundred thirty-three".