144642 has 8 divisors (see below), whose sum is σ = 289296. Its totient is φ = 48212.

The previous prime is 144629. The next prime is 144659. The reversal of 144642 is 246441.

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

144642 is an admirable number.

It is a plaindrome in base 15.

It is a nialpdrome in base 11.

It is an unprimeable number.

144642 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12048 + ... + 12059.

It is an arithmetic number, because the mean of its divisors is an integer number (36162).

2¹⁴⁴⁶⁴² is an apocalyptic number.

144642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144642 is a wasteful number, since it uses less digits than its factorization.

144642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24112.

The product of its digits is 768, while the sum is 21.

The square root of 144642 is about 380.3182877538. The cubic root of 144642 is about 52.4926066686.

It can be divided in two parts, 14 and 4642, that added together give a triangular number (4656 = T₉₆).

The spelling of 144642 in words is "one hundred forty-four thousand, six hundred forty-two".