144736 has 12 divisors (see below), whose sum is σ = 285012. Its totient is φ = 72352.

The previous prime is 144731. The next prime is 144737. The reversal of 144736 is 637441.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 144736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2230 + ... + 2293.

It is an arithmetic number, because the mean of its divisors is an integer number (23751).

2¹⁴⁴⁷³⁶ is an apocalyptic number.

144736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

144736 is a deficient number, since it is larger than the sum of its proper divisors (140276).

144736 is an equidigital number, since it uses as much as digits as its factorization.

144736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4533 (or 4525 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 144736 is about 380.4418483816. The cubic root of 144736 is about 52.5039755115.

The spelling of 144736 in words is "one hundred forty-four thousand, seven hundred thirty-six".