11172345 has 8 divisors (see below), whose sum is σ = 17875776. Its totient is φ = 5958576.

The previous prime is 11172341. The next prime is 11172353. The reversal of 11172345 is 54327111.

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

It is not a de Polignac number, because 11172345 - 2² = 11172341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11172341) 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, 372397 + ... + 372426.

It is an arithmetic number, because the mean of its divisors is an integer number (2234472).

Almost surely, 2^11172345 is an apocalyptic number.

11172345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11172345 is a deficient number, since it is larger than the sum of its proper divisors (6703431).

11172345 is an equidigital number, since it uses as much as digits as its factorization.

11172345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744831.

The product of its digits is 840, while the sum is 24.

The square root of 11172345 is about 3342.5057965544. The cubic root of 11172345 is about 223.5534857904.

Adding to 11172345 its reverse (54327111), we get a palindrome (65499456).

The spelling of 11172345 in words is "eleven million, one hundred seventy-two thousand, three hundred forty-five".