117345009 has 4 divisors (see below), whose sum is σ = 156460016. Its totient is φ = 78230004.

The previous prime is 117345001. The next prime is 117345017. The reversal of 117345009 is 900543711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (117345001) and next prime (117345017).

It is not a de Polignac number, because 117345009 - 2³ = 117345001 is a prime.

It is a super-2 number, since 2×117345009² = 27539702274420162, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117345001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19557499 + ... + 19557504.

It is an arithmetic number, because the mean of its divisors is an integer number (39115004).

Almost surely, 2^117345009 is an apocalyptic number.

It is an amenable number.

117345009 is a deficient number, since it is larger than the sum of its proper divisors (39115007).

117345009 is an equidigital number, since it uses as much as digits as its factorization.

117345009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39115006.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 117345009 is about 10832.5901334815. The cubic root of 117345009 is about 489.5776021074.

The spelling of 117345009 in words is "one hundred seventeen million, three hundred forty-five thousand, nine".