1345109 has 8 divisors (see below), whose sum is σ = 1415232. Its totient is φ = 1276000.

The previous prime is 1345079. The next prime is 1345117. The reversal of 1345109 is 9015431.

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 a de Polignac number, because none of the positive numbers 2^k-1345109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345129) 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, 5234 + ... + 5484.

It is an arithmetic number, because the mean of its divisors is an integer number (176904).

2^1345109 is an apocalyptic number.

It is an amenable number.

1345109 is a deficient number, since it is larger than the sum of its proper divisors (70123).

1345109 is a wasteful number, since it uses less digits than its factorization.

1345109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507.

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

The square root of 1345109 is about 1159.7883427591. The cubic root of 1345109 is about 110.3873123503.

The spelling of 1345109 in words is "one million, three hundred forty-five thousand, one hundred nine".