117275409 has 12 divisors (see below), whose sum is σ = 169633152. Its totient is φ = 78075000.

The previous prime is 117275407. The next prime is 117275419. The reversal of 117275409 is 904572711.

It is a happy number.

It is not a de Polignac number, because 117275409 - 2¹ = 117275407 is a prime.

It is a super-2 number, since 2×117275409² = 27507043112234562, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (117275407) 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 11 ways as a sum of consecutive naturals, for example, 1917 + ... + 15434.

It is an arithmetic number, because the mean of its divisors is an integer number (14136096).

Almost surely, 2^117275409 is an apocalyptic number.

It is an amenable number.

117275409 is a deficient number, since it is larger than the sum of its proper divisors (52357743).

117275409 is a wasteful number, since it uses less digits than its factorization.

117275409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18108 (or 18105 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 117275409 is about 10829.3771289027. The cubic root of 117275409 is about 489.4807897521.

The spelling of 117275409 in words is "one hundred seventeen million, two hundred seventy-five thousand, four hundred nine".