144005429 has 4 divisors (see below), whose sum is σ = 144055884. Its totient is φ = 143954976.

The previous prime is 144005423. The next prime is 144005441. The reversal of 144005429 is 924500441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68923204 + 75082225 = 8302^2 + 8665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144005429 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 (144005423) 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, 20672 + ... + 26745.

It is an arithmetic number, because the mean of its divisors is an integer number (36013971).

Almost surely, 2^144005429 is an apocalyptic number.

It is an amenable number.

144005429 is a deficient number, since it is larger than the sum of its proper divisors (50455).

144005429 is an equidigital number, since it uses as much as digits as its factorization.

144005429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50454.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 144005429 is about 12000.2262062013. The cubic root of 144005429 is about 524.1548657984.

The spelling of 144005429 in words is "one hundred forty-four million, five thousand, four hundred twenty-nine".