1109345 has 8 divisors (see below), whose sum is σ = 1342464. Its totient is φ = 879984.

The previous prime is 1109327. The next prime is 1109347. The reversal of 1109345 is 5439011.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1109345 - 2⁶ = 1109281 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1109345.

It is not an unprimeable number, because it can be changed into a prime (1109347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239 + ... + 1508.

It is an arithmetic number, because the mean of its divisors is an integer number (167808).

2^1109345 is an apocalyptic number.

It is an amenable number.

1109345 is a deficient number, since it is larger than the sum of its proper divisors (233119).

1109345 is a wasteful number, since it uses less digits than its factorization.

1109345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1109345 is about 1053.2544801709. The cubic root of 1109345 is about 103.5195105851.

The spelling of 1109345 in words is "one million, one hundred nine thousand, three hundred forty-five".