144564556 has 12 divisors (see below), whose sum is σ = 253974168. Its totient is φ = 72000512.

The previous prime is 144564551. The next prime is 144564557. The reversal of 144564556 is 655465441.

It is not an unprimeable number, because it can be changed into a prime (144564551) 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 3 ways as a sum of consecutive naturals, for example, 69286 + ... + 71341.

It is an arithmetic number, because the mean of its divisors is an integer number (21164514).

Almost surely, 2^144564556 is an apocalyptic number.

It is an amenable number.

144564556 is a deficient number, since it is larger than the sum of its proper divisors (109409612).

144564556 is a wasteful number, since it uses less digits than its factorization.

144564556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140888 (or 140886 counting only the distinct ones).

The product of its digits is 288000, while the sum is 40.

The square root of 144564556 is about 12023.5001559446. The cubic root of 144564556 is about 524.8323649219.

The spelling of 144564556 in words is "one hundred forty-four million, five hundred sixty-four thousand, five hundred fifty-six".