144681 has 8 divisors (see below), whose sum is σ = 199680. Its totient is φ = 93072.

The previous prime is 144671. The next prime is 144701. The reversal of 144681 is 186441.

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

It is not a de Polignac number, because 144681 - 2⁹ = 144169 is a prime.

It is a super-2 number, since 2×144681² = 41865183522, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144681.

It is not an unprimeable number, because it can be changed into a prime (144611) 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, 745 + ... + 918.

It is an arithmetic number, because the mean of its divisors is an integer number (24960).

2¹⁴⁴⁶⁸¹ is an apocalyptic number.

It is an amenable number.

144681 is a deficient number, since it is larger than the sum of its proper divisors (54999).

144681 is a wasteful number, since it uses less digits than its factorization.

144681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695.

The product of its digits is 768, while the sum is 24.

The square root of 144681 is about 380.3695571415. The cubic root of 144681 is about 52.4973241267.

The spelling of 144681 in words is "one hundred forty-four thousand, six hundred eighty-one".