1384121 has 2 divisors, whose sum is σ = 1384122. Its totient is φ = 1384120.

The previous prime is 1384109. The next prime is 1384139. The reversal of 1384121 is 1214831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1357225 + 26896 = 1165^2 + 164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1384121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1384093 and 1384102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1384171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692060 + 692061.

It is an arithmetic number, because the mean of its divisors is an integer number (692061).

2^1384121 is an apocalyptic number.

It is an amenable number.

1384121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384121 is an equidigital number, since it uses as much as digits as its factorization.

1384121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 20.

The square root of 1384121 is about 1176.4867190071. The cubic root of 1384121 is about 111.4443406974. Note that the first 3 decimals are identical.

Adding to 1384121 its reverse (1214831), we get a palindrome (2598952).

The spelling of 1384121 in words is "one million, three hundred eighty-four thousand, one hundred twenty-one".