117656219 has 4 divisors (see below), whose sum is σ = 121713360. Its totient is φ = 113599080.

The previous prime is 117656197. The next prime is 117656233. The reversal of 117656219 is 912656711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117656219 - 2²⁰ = 116607643 is a prime.

It is a super-2 number, since 2×117656219² = 27685971738751922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117656239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2028527 + ... + 2028584.

It is an arithmetic number, because the mean of its divisors is an integer number (30428340).

Almost surely, 2^117656219 is an apocalyptic number.

117656219 is a deficient number, since it is larger than the sum of its proper divisors (4057141).

117656219 is an equidigital number, since it uses as much as digits as its factorization.

117656219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057140.

The product of its digits is 22680, while the sum is 38.

The square root of 117656219 is about 10846.9451459847. The cubic root of 117656219 is about 490.0100220080.

The spelling of 117656219 in words is "one hundred seventeen million, six hundred fifty-six thousand, two hundred nineteen".