144411561 has 24 divisors (see below), whose sum is σ = 246617280. Its totient is φ = 79674336.

The previous prime is 144411559. The next prime is 144411581. The reversal of 144411561 is 165114441.

144411561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144411561 - 2¹ = 144411559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144411521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37695 + ... + 41348.

It is an arithmetic number, because the mean of its divisors is an integer number (10275720).

Almost surely, 2^144411561 is an apocalyptic number.

It is an amenable number.

144411561 is a deficient number, since it is larger than the sum of its proper divisors (102205719).

144411561 is a wasteful number, since it uses less digits than its factorization.

144411561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79085 (or 79082 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 144411561 is about 12017.1361396965. The cubic root of 144411561 is about 524.6471533851.

The spelling of 144411561 in words is "one hundred forty-four million, four hundred eleven thousand, five hundred sixty-one".