1384145 has 16 divisors (see below), whose sum is σ = 1928448. Its totient is φ = 934080.

The previous prime is 1384139. The next prime is 1384171. The reversal of 1384145 is 5414831.

It is not a de Polignac number, because 1384145 - 2¹⁰ = 1383121 is a prime.

It is a Duffinian number.

Its product of digits (1920) is a multiple of the sum of its prime divisors (640).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2207 + ... + 2763.

It is an arithmetic number, because the mean of its divisors is an integer number (120528).

2^1384145 is an apocalyptic number.

It is an amenable number.

1384145 is a deficient number, since it is larger than the sum of its proper divisors (544303).

1384145 is an equidigital number, since it uses as much as digits as its factorization.

1384145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640.

The product of its digits is 1920, while the sum is 26.

The square root of 1384145 is about 1176.4969188230. The cubic root of 1384145 is about 111.4449848243. Note that the first 3 decimals are identical.

Adding to 1384145 its reverse (5414831), we get a palindrome (6798976).

The spelling of 1384145 in words is "one million, three hundred eighty-four thousand, one hundred forty-five".