144435609 has 16 divisors (see below), whose sum is σ = 214200000. Its totient is φ = 96190848.

The previous prime is 144435569. The next prime is 144435623. The reversal of 144435609 is 906534441.

144435609 is a `hidden beast` number, since 1 + 4 + 4 + 43 + 5 + 609 = 666.

It is not a de Polignac number, because 144435609 - 2⁹ = 144435097 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (144435649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31582 + ... + 35864.

It is an arithmetic number, because the mean of its divisors is an integer number (13387500).

Almost surely, 2^144435609 is an apocalyptic number.

It is an amenable number.

144435609 is a deficient number, since it is larger than the sum of its proper divisors (69764391).

144435609 is a wasteful number, since it uses less digits than its factorization.

144435609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5541 (or 5535 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 144435609 is about 12018.1366692179. The cubic root of 144435609 is about 524.6762738941.

The spelling of 144435609 in words is "one hundred forty-four million, four hundred thirty-five thousand, six hundred nine".