144403012 has 12 divisors (see below), whose sum is σ = 272144236. Its totient is φ = 66647520.

The previous prime is 144403001. The next prime is 144403019. The reversal of 144403012 is 210304441.

It can be written as a sum of positive squares in 2 ways, for example, as 75446596 + 68956416 = 8686^2 + 8304^2 .

It is a super-3 number, since 3×144403012³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (144403019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388439 + ... + 1388542.

Almost surely, 2^144403012 is an apocalyptic number.

It is an amenable number.

144403012 is a deficient number, since it is larger than the sum of its proper divisors (127741224).

144403012 is a wasteful number, since it uses less digits than its factorization.

144403012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776998 (or 2776996 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 144403012 is about 12016.7804340431. The cubic root of 144403012 is about 524.6368003427.

Adding to 144403012 its reverse (210304441), we get a palindrome (354707453).

The spelling of 144403012 in words is "one hundred forty-four million, four hundred three thousand, twelve".