144231145 has 16 divisors (see below), whose sum is σ = 186269328. Its totient is φ = 106813440.

The previous prime is 144231119. The next prime is 144231151. The reversal of 144231145 is 541132441.

It can be written as a sum of positive squares in 8 ways, for example, as 5368489 + 138862656 = 2317^2 + 11784^2 .

It is a de Polignac number, because none of the positive numbers 2^k-144231145 is a prime.

It is a super-2 number, since 2×144231145² = 41605246376022050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8724 + ... + 19093.

It is an arithmetic number, because the mean of its divisors is an integer number (11641833).

Almost surely, 2^144231145 is an apocalyptic number.

It is an amenable number.

144231145 is a deficient number, since it is larger than the sum of its proper divisors (42038183).

144231145 is a wasteful number, since it uses less digits than its factorization.

144231145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27900.

The product of its digits is 1920, while the sum is 25.

The square root of 144231145 is about 12009.6271798920. The cubic root of 144231145 is about 524.4285785805.

Adding to 144231145 its reverse (541132441), we get a palindrome (685363586).

The spelling of 144231145 in words is "one hundred forty-four million, two hundred thirty-one thousand, one hundred forty-five".