144144861 has 16 divisors (see below), whose sum is σ = 220697088. Its totient is φ = 81975600.

The previous prime is 144144857. The next prime is 144144863. The reversal of 144144861 is 168441441.

It is a happy number.

It is not a de Polignac number, because 144144861 - 2² = 144144857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144144863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11835 + ... + 20696.

It is an arithmetic number, because the mean of its divisors is an integer number (13793568).

Almost surely, 2^144144861 is an apocalyptic number.

It is an amenable number.

144144861 is a deficient number, since it is larger than the sum of its proper divisors (76552227).

144144861 is a wasteful number, since it uses less digits than its factorization.

144144861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32752.

The product of its digits is 12288, while the sum is 33.

The square root of 144144861 is about 12006.0343577719. The cubic root of 144144861 is about 524.3239806871.

The spelling of 144144861 in words is "one hundred forty-four million, one hundred forty-four thousand, eight hundred sixty-one".