144550487 has 4 divisors (see below), whose sum is σ = 146380320. Its totient is φ = 142720656.

The previous prime is 144550463. The next prime is 144550513. The reversal of 144550487 is 784055441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144550487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144550487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144550447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914798 + ... + 914955.

It is an arithmetic number, because the mean of its divisors is an integer number (36595080).

Almost surely, 2^144550487 is an apocalyptic number.

144550487 is a deficient number, since it is larger than the sum of its proper divisors (1829833).

144550487 is an equidigital number, since it uses as much as digits as its factorization.

144550487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829832.

The product of its (nonzero) digits is 89600, while the sum is 38.

The square root of 144550487 is about 12022.9150791312. The cubic root of 144550487 is about 524.8153388350.

The spelling of 144550487 in words is "one hundred forty-four million, five hundred fifty thousand, four hundred eighty-seven".