144028291 has 8 divisors (see below), whose sum is σ = 157229568. Its totient is φ = 130845000.

The previous prime is 144028289. The next prime is 144028319. The reversal of 144028291 is 192820441.

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

It is not a de Polignac number, because 144028291 - 2¹ = 144028289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144028211) 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, 16566 + ... + 23716.

It is an arithmetic number, because the mean of its divisors is an integer number (19653696).

Almost surely, 2^144028291 is an apocalyptic number.

144028291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

144028291 is a deficient number, since it is larger than the sum of its proper divisors (13201277).

144028291 is a wasteful number, since it uses less digits than its factorization.

144028291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8993.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 144028291 is about 12001.1787337744. The cubic root of 144028291 is about 524.1826022398.

The spelling of 144028291 in words is "one hundred forty-four million, twenty-eight thousand, two hundred ninety-one".