1404109 has 4 divisors (see below), whose sum is σ = 1604704. Its totient is φ = 1203516.

The previous prime is 1404107. The next prime is 1404131. The reversal of 1404109 is 9014041.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9014041 = 29 ⋅310829.

It is a cyclic number.

It is not a de Polignac number, because 1404109 - 2¹ = 1404107 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404107) 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, 100287 + ... + 100300.

It is an arithmetic number, because the mean of its divisors is an integer number (401176).

2^1404109 is an apocalyptic number.

It is an amenable number.

1404109 is a deficient number, since it is larger than the sum of its proper divisors (200595).

1404109 is an equidigital number, since it uses as much as digits as its factorization.

1404109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200594.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1404109 is about 1184.9510538415. The cubic root of 1404109 is about 111.9782323768.

The spelling of 1404109 in words is "one million, four hundred four thousand, one hundred nine".