144429073 has 4 divisors (see below), whose sum is σ = 147502080. Its totient is φ = 141356068.

The previous prime is 144429067. The next prime is 144429097. The reversal of 144429073 is 370924441.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 144429073 - 2⁹ = 144428561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144429053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1536433 + ... + 1536526.

It is an arithmetic number, because the mean of its divisors is an integer number (36875520).

Almost surely, 2^144429073 is an apocalyptic number.

It is an amenable number.

144429073 is a deficient number, since it is larger than the sum of its proper divisors (3073007).

144429073 is an equidigital number, since it uses as much as digits as its factorization.

144429073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073006.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 144429073 is about 12017.8647437887. The cubic root of 144429073 is about 524.6683595580.

The spelling of 144429073 in words is "one hundred forty-four million, four hundred twenty-nine thousand, seventy-three".