144780 has 48 divisors (see below), whose sum is σ = 430080. Its totient is φ = 36288.

The previous prime is 144779. The next prime is 144791. The reversal of 144780 is 87441.

Added to its reverse (87441) it gives a triangular number (232221 = T₆₈₁).

It is a super-2 number, since 2×144780² = 41922496800, which contains 22 as substring.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 144780.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1077 + ... + 1203.

It is an arithmetic number, because the mean of its divisors is an integer number (8960).

2¹⁴⁴⁷⁸⁰ is an apocalyptic number.

144780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 380×381.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215040).

144780 is an abundant number, since it is smaller than the sum of its proper divisors (285300).

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

144780 is a wasteful number, since it uses less digits than its factorization.

144780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 144780 is about 380.4996714847. The cubic root of 144780 is about 52.5092954063.

Adding to 144780 its reverse (87441), we get a triangular number (232221 = T₆₈₁).

The spelling of 144780 in words is "one hundred forty-four thousand, seven hundred eighty".