1384129 has 4 divisors (see below), whose sum is σ = 1387440. Its totient is φ = 1380820.

The previous prime is 1384121. The next prime is 1384139. The reversal of 1384129 is 9214831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1384129 - 2³ = 1384121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1384097 and 1384106.

It is not an unprimeable number, because it can be changed into a prime (1384121) 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, 919 + ... + 1900.

It is an arithmetic number, because the mean of its divisors is an integer number (346860).

2^1384129 is an apocalyptic number.

It is an amenable number.

1384129 is a deficient number, since it is larger than the sum of its proper divisors (3311).

1384129 is an equidigital number, since it uses as much as digits as its factorization.

1384129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310.

The product of its digits is 1728, while the sum is 28.

The square root of 1384129 is about 1176.4901189555. The cubic root of 1384129 is about 111.4445554072. Note that the first 3 decimals are identical.

The spelling of 1384129 in words is "one million, three hundred eighty-four thousand, one hundred twenty-nine".