117487009 has 4 divisors (see below), whose sum is σ = 117691204. Its totient is φ = 117282816.

The previous prime is 117487001. The next prime is 117487021. The reversal of 117487009 is 900784711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 900784711 = 127 ⋅7092793.

It can be written as a sum of positive squares in 2 ways, for example, as 90155025 + 27331984 = 9495^2 + 5228^2 .

It is a cyclic number.

It is not a de Polignac number, because 117487009 - 2³ = 117487001 is a prime.

It is a super-3 number, since 3×117487009³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117487001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101232 + ... + 102385.

It is an arithmetic number, because the mean of its divisors is an integer number (29422801).

Almost surely, 2^117487009 is an apocalyptic number.

It is an amenable number.

117487009 is a deficient number, since it is larger than the sum of its proper divisors (204195).

117487009 is an equidigital number, since it uses as much as digits as its factorization.

117487009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204194.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 117487009 is about 10839.1424476293. The cubic root of 117487009 is about 489.7750029079.

The spelling of 117487009 in words is "one hundred seventeen million, four hundred eighty-seven thousand, nine".