144538904 has 8 divisors (see below), whose sum is σ = 271010460. Its totient is φ = 72269448.

The previous prime is 144538903. The next prime is 144538907. The reversal of 144538904 is 409835441.

144538904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144538903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9033674 + ... + 9033689.

Almost surely, 2^144538904 is an apocalyptic number.

It is an amenable number.

144538904 is a deficient number, since it is larger than the sum of its proper divisors (126471556).

144538904 is a wasteful number, since it uses less digits than its factorization.

144538904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18067369 (or 18067365 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 144538904 is about 12022.4333643402. The cubic root of 144538904 is about 524.8013204378.

The spelling of 144538904 in words is "one hundred forty-four million, five hundred thirty-eight thousand, nine hundred four".