144285311 has 4 divisors (see below), whose sum is σ = 148184952. Its totient is φ = 140385672.

The previous prime is 144285301. The next prime is 144285329. The reversal of 144285311 is 113582441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144285311 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 (144285301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1949765 + ... + 1949838.

It is an arithmetic number, because the mean of its divisors is an integer number (37046238).

Almost surely, 2^144285311 is an apocalyptic number.

144285311 is a deficient number, since it is larger than the sum of its proper divisors (3899641).

144285311 is an equidigital number, since it uses as much as digits as its factorization.

144285311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3899640.

The product of its digits is 3840, while the sum is 29.

The square root of 144285311 is about 12011.8820756782. The cubic root of 144285311 is about 524.4942200736.

The spelling of 144285311 in words is "one hundred forty-four million, two hundred eighty-five thousand, three hundred eleven".