144027561 has 16 divisors (see below), whose sum is σ = 194393088. Its totient is φ = 94848000.

The previous prime is 144027551. The next prime is 144027563. The reversal of 144027561 is 165720441.

It is not a de Polignac number, because 144027561 - 2⁵ = 144027529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144027563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89161 + ... + 90761.

It is an arithmetic number, because the mean of its divisors is an integer number (12149568).

Almost surely, 2^144027561 is an apocalyptic number.

It is an amenable number.

144027561 is a deficient number, since it is larger than the sum of its proper divisors (50365527).

144027561 is a wasteful number, since it uses less digits than its factorization.

144027561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 144027561 is about 12001.1483200567. The cubic root of 144027561 is about 524.1817166408.

The spelling of 144027561 in words is "one hundred forty-four million, twenty-seven thousand, five hundred sixty-one".