144322561 has 8 divisors (see below), whose sum is σ = 145411200. Its totient is φ = 143237952.

The previous prime is 144322559. The next prime is 144322573. The reversal of 144322561 is 165223441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144322561 - 2¹ = 144322559 is a prime.

It is a super-2 number, since 2×144322561² = 41658003227197442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144322511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117396 + ... + 118618.

It is an arithmetic number, because the mean of its divisors is an integer number (18176400).

Almost surely, 2^144322561 is an apocalyptic number.

It is an amenable number.

144322561 is a deficient number, since it is larger than the sum of its proper divisors (1088639).

144322561 is a wasteful number, since it uses less digits than its factorization.

144322561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015.

The product of its digits is 5760, while the sum is 28.

The square root of 144322561 is about 12013.4325236379. The cubic root of 144322561 is about 524.5393522461.

It can be divided in two parts, 1443 and 22561, that multiplied together give a palindrome (32555523).

The spelling of 144322561 in words is "one hundred forty-four million, three hundred twenty-two thousand, five hundred sixty-one".