144332146 has 12 divisors (see below), whose sum is σ = 251845038. Its totient is φ = 61856592.

The previous prime is 144332143. The next prime is 144332171. The reversal of 144332146 is 641233441.

It can be written as a sum of positive squares in only one way, i.e., 137804121 + 6528025 = 11739^2 + 2555^2 .

It is not an unprimeable number, because it can be changed into a prime (144332143) 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 5 ways as a sum of consecutive naturals, for example, 736291 + ... + 736486.

Almost surely, 2^144332146 is an apocalyptic number.

144332146 is a deficient number, since it is larger than the sum of its proper divisors (107512892).

144332146 is a wasteful number, since it uses less digits than its factorization.

144332146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472793 (or 1472786 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 144332146 is about 12013.8314454632. The cubic root of 144332146 is about 524.5509641945.

Adding to 144332146 its reverse (641233441), we get a palindrome (785565587).

The spelling of 144332146 in words is "one hundred forty-four million, three hundred thirty-two thousand, one hundred forty-six".