144428713 has 8 divisors (see below), whose sum is σ = 169678656. Its totient is φ = 121198800.

The previous prime is 144428699. The next prime is 144428737. The reversal of 144428713 is 317824441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144428713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144428743) 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, 504853 + ... + 505138.

It is an arithmetic number, because the mean of its divisors is an integer number (21209832).

Almost surely, 2^144428713 is an apocalyptic number.

144428713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144428713 is a deficient number, since it is larger than the sum of its proper divisors (25249943).

144428713 is a wasteful number, since it uses less digits than its factorization.

144428713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010015.

The product of its digits is 21504, while the sum is 34.

The square root of 144428713 is about 12017.8497660771. The cubic root of 144428713 is about 524.6679236329.

The spelling of 144428713 in words is "one hundred forty-four million, four hundred twenty-eight thousand, seven hundred thirteen".