1117173345 has 8 divisors (see below), whose sum is σ = 1787477376. Its totient is φ = 595825776.

The previous prime is 1117173313. The next prime is 1117173353. The reversal of 1117173345 is 5433717111.

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

It is not a de Polignac number, because 1117173345 - 2⁵ = 1117173313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37239097 + ... + 37239126.

It is an arithmetic number, because the mean of its divisors is an integer number (223434672).

Almost surely, 2^1117173345 is an apocalyptic number.

1117173345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1117173345 is a deficient number, since it is larger than the sum of its proper divisors (670304031).

1117173345 is an equidigital number, since it uses as much as digits as its factorization.

1117173345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74478231.

The product of its digits is 8820, while the sum is 33.

The square root of 1117173345 is about 33424.1431453373. The cubic root of 1117173345 is about 1037.6244302303.

The spelling of 1117173345 in words is "one billion, one hundred seventeen million, one hundred seventy-three thousand, three hundred forty-five".