144411331 has 4 divisors (see below), whose sum is σ = 146566792. Its totient is φ = 142255872.

The previous prime is 144411313. The next prime is 144411349. The reversal of 144411331 is 133114441.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (144411313) and next prime (144411349).

It is a cyclic number.

It is not a de Polignac number, because 144411331 - 2¹¹ = 144409283 is a prime.

It is a super-2 number, since 2×144411331² = 41709265042383122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144411391) 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, 1077630 + ... + 1077763.

It is an arithmetic number, because the mean of its divisors is an integer number (36641698).

Almost surely, 2^144411331 is an apocalyptic number.

144411331 is a deficient number, since it is larger than the sum of its proper divisors (2155461).

144411331 is an equidigital number, since it uses as much as digits as its factorization.

144411331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155460.

The product of its digits is 576, while the sum is 22.

The square root of 144411331 is about 12017.1265700250. The cubic root of 144411331 is about 524.6468748549.

Adding to 144411331 its reverse (133114441), we get a palindrome (277525772).

The spelling of 144411331 in words is "one hundred forty-four million, four hundred eleven thousand, three hundred thirty-one".