1109413 has 4 divisors (see below), whose sum is σ = 1120288. Its totient is φ = 1098540.

The previous prime is 1109411. The next prime is 1109431. The reversal of 1109413 is 3149011.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3149011 = 31 ⋅101581.

It is a cyclic number.

It is not a de Polignac number, because 1109413 - 2¹ = 1109411 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 (1109411) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5283 + ... + 5488.

It is an arithmetic number, because the mean of its divisors is an integer number (280072).

2^1109413 is an apocalyptic number.

It is an amenable number.

1109413 is a deficient number, since it is larger than the sum of its proper divisors (10875).

1109413 is a wasteful number, since it uses less digits than its factorization.

1109413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10874.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1109413 is about 1053.2867605738. The cubic root of 1109413 is about 103.5216257020.

Subtracting from 1109413 its product of nonzero digits (108), we obtain a triangular number (1109305 = T₁₄₈₉).

The spelling of 1109413 in words is "one million, one hundred nine thousand, four hundred thirteen".