144384657 has 16 divisors (see below), whose sum is σ = 197588160. Its totient is φ = 93728000.

The previous prime is 144384637. The next prime is 144384659. The reversal of 144384657 is 756483441.

It is a cyclic number.

It is not a de Polignac number, because 144384657 - 2⁷ = 144384529 is a prime.

It is a super-4 number, since 4×144384657⁴ (a number of 34 digits) contains 4444 as substring.

Its product of digits (322560) is a multiple of the sum of its prime divisors (2304).

It is not an unprimeable number, because it can be changed into a prime (144384659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98782 + ... + 100232.

It is an arithmetic number, because the mean of its divisors is an integer number (12349260).

Almost surely, 2^144384657 is an apocalyptic number.

It is an amenable number.

144384657 is a deficient number, since it is larger than the sum of its proper divisors (53203503).

144384657 is a wasteful number, since it uses less digits than its factorization.

144384657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304.

The product of its digits is 322560, while the sum is 42.

The square root of 144384657 is about 12016.0166860736. The cubic root of 144384657 is about 524.6145706205.

The spelling of 144384657 in words is "one hundred forty-four million, three hundred eighty-four thousand, six hundred fifty-seven".