2144535609 has 8 divisors (see below), whose sum is σ = 2859922432. Its totient is φ = 1429419600.

The previous prime is 2144535553. The next prime is 2144535611. The reversal of 2144535609 is 9065354412.

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

It is not a de Polignac number, because 2144535609 - 2⁸ = 2144535353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144535629) 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 7 ways as a sum of consecutive naturals, for example, 48442 + ... + 81459.

It is an arithmetic number, because the mean of its divisors is an integer number (357490304).

Almost surely, 2^2144535609 is an apocalyptic number.

It is an amenable number.

2144535609 is a deficient number, since it is larger than the sum of its proper divisors (715386823).

2144535609 is a wasteful number, since it uses less digits than its factorization.

2144535609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135407.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 2144535609 is about 46309.1309462832. The cubic root of 2144535609 is about 1289.5685132225.

The spelling of 2144535609 in words is "two billion, one hundred forty-four million, five hundred thirty-five thousand, six hundred nine".