117612009 has 12 divisors (see below), whose sum is σ = 173835376. Its totient is φ = 76584312.

The previous prime is 117611999. The next prime is 117612013. The reversal of 117612009 is 900216711.

It is not a de Polignac number, because 117612009 - 2¹³ = 117603817 is a prime.

It is a super-2 number, since 2×117612009² = 27665169322032162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117612809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151567 + ... + 152340.

Almost surely, 2^117612009 is an apocalyptic number.

It is an amenable number.

117612009 is a deficient number, since it is larger than the sum of its proper divisors (56223367).

117612009 is a wasteful number, since it uses less digits than its factorization.

117612009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303956 (or 303953 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 117612009 is about 10844.9070535436. The cubic root of 117612009 is about 489.9486396258.

The spelling of 117612009 in words is "one hundred seventeen million, six hundred twelve thousand, nine".