11309345 has 8 divisors (see below), whose sum is σ = 13612200. Its totient is φ = 9020160.

The previous prime is 11309341. The next prime is 11309359. The reversal of 11309345 is 54390311.

It can be written as a sum of positive squares in 4 ways, for example, as 4963984 + 6345361 = 2228^2 + 2519^2 .

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

It is not a de Polignac number, because 11309345 - 2² = 11309341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11309341) 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, 1496 + ... + 4985.

It is an arithmetic number, because the mean of its divisors is an integer number (1701525).

Almost surely, 2^11309345 is an apocalyptic number.

It is an amenable number.

11309345 is a deficient number, since it is larger than the sum of its proper divisors (2302855).

11309345 is an equidigital number, since it uses as much as digits as its factorization.

11309345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 11309345 is about 3362.9369604558. The cubic root of 11309345 is about 224.4635450220.

Adding to 11309345 its reverse (54390311), we get a palindrome (65699656).

The spelling of 11309345 in words is "eleven million, three hundred nine thousand, three hundred forty-five".