1384135 has 4 divisors (see below), whose sum is σ = 1660968. Its totient is φ = 1107304.

The previous prime is 1384121. The next prime is 1384139. The reversal of 1384135 is 5314831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5314831 = 1447 ⋅3673.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1384135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138409 + ... + 138418.

It is an arithmetic number, because the mean of its divisors is an integer number (415242).

2^1384135 is an apocalyptic number.

1384135 is a deficient number, since it is larger than the sum of its proper divisors (276833).

1384135 is an equidigital number, since it uses as much as digits as its factorization.

1384135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276832.

The product of its digits is 1440, while the sum is 25.

The square root of 1384135 is about 1176.4926689104. The cubic root of 1384135 is about 111.4447164390. Note that the first 3 decimals are identical.

Adding to 1384135 its reverse (5314831), we get a palindrome (6698966).

It can be divided in two parts, 13 and 84135, that added together give a palindrome (84148).

The spelling of 1384135 in words is "one million, three hundred eighty-four thousand, one hundred thirty-five".