144534568 has 8 divisors (see below), whose sum is σ = 271002330. Its totient is φ = 72267280.

The previous prime is 144534547. The next prime is 144534569. The reversal of 144534568 is 865435441.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 144528484 + 6084 = 12022^2 + 78^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 144534568.

It is not an unprimeable number, because it can be changed into a prime (144534569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9033403 + ... + 9033418.

Almost surely, 2^144534568 is an apocalyptic number.

It is an amenable number.

144534568 is a deficient number, since it is larger than the sum of its proper divisors (126467762).

144534568 is a wasteful number, since it uses less digits than its factorization.

144534568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18066827 (or 18066823 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

The square root of 144534568 is about 12022.2530334376. The cubic root of 144534568 is about 524.7960725743.

The spelling of 144534568 in words is "one hundred forty-four million, five hundred thirty-four thousand, five hundred sixty-eight".