1109361 has 8 divisors (see below), whose sum is σ = 1613664. Its totient is φ = 672320.

The previous prime is 1109351. The next prime is 1109363. The reversal of 1109361 is 1639011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1109361 - 2¹⁰ = 1108337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1109363) 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 7 ways as a sum of consecutive naturals, for example, 16776 + ... + 16841.

It is an arithmetic number, because the mean of its divisors is an integer number (201708).

2^1109361 is an apocalyptic number.

1109361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1109361 is a deficient number, since it is larger than the sum of its proper divisors (504303).

1109361 is a wasteful number, since it uses less digits than its factorization.

1109361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33631.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1109361 is about 1053.2620756488. The cubic root of 1109361 is about 103.5200082675.

The spelling of 1109361 in words is "one million, one hundred nine thousand, three hundred sixty-one".