144681659 has 4 divisors (see below), whose sum is σ = 144812304. Its totient is φ = 144551016.

The previous prime is 144681643. The next prime is 144681673. The reversal of 144681659 is 956186441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144681659 - 2⁴ = 144681643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144681689) 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 3 ways as a sum of consecutive naturals, for example, 63647 + ... + 65880.

It is an arithmetic number, because the mean of its divisors is an integer number (36203076).

Almost surely, 2^144681659 is an apocalyptic number.

144681659 is a deficient number, since it is larger than the sum of its proper divisors (130645).

144681659 is a wasteful number, since it uses less digits than its factorization.

144681659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130644.

The product of its digits is 207360, while the sum is 44.

The square root of 144681659 is about 12028.3689251702. The cubic root of 144681659 is about 524.9740383231.

The spelling of 144681659 in words is "one hundred forty-four million, six hundred eighty-one thousand, six hundred fifty-nine".