144687 has 8 divisors (see below), whose sum is σ = 204336. Its totient is φ = 90752.

The previous prime is 144671. The next prime is 144701. The reversal of 144687 is 786441.

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

It is a cyclic number.

It is not a de Polignac number, because 144687 - 2⁴ = 144671 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144687.

It is not an unprimeable number, because it can be changed into a prime (144667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1368 + ... + 1469.

It is an arithmetic number, because the mean of its divisors is an integer number (25542).

2¹⁴⁴⁶⁸⁷ is an apocalyptic number.

144687 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

144687 is a deficient number, since it is larger than the sum of its proper divisors (59649).

144687 is a wasteful number, since it uses less digits than its factorization.

144687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857.

The product of its digits is 5376, while the sum is 30.

The square root of 144687 is about 380.3774441262. The cubic root of 144687 is about 52.4980498142.

The spelling of 144687 in words is "one hundred forty-four thousand, six hundred eighty-seven".