117216351 has 24 divisors (see below), whose sum is σ = 194109344. Its totient is φ = 66769920.

The previous prime is 117216331. The next prime is 117216367. The reversal of 117216351 is 153612711.

117216351 is a `hidden beast` number, since 1 + 1 + 7 + 21 + 635 + 1 = 666.

It is not a de Polignac number, because 117216351 - 2⁶ = 117216287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117216331) 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 23 ways as a sum of consecutive naturals, for example, 18471 + ... + 23991.

Almost surely, 2^117216351 is an apocalyptic number.

117216351 is a deficient number, since it is larger than the sum of its proper divisors (76892993).

117216351 is a wasteful number, since it uses less digits than its factorization.

117216351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871 (or 5868 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 117216351 is about 10826.6500359068. The cubic root of 117216351 is about 489.3986110851.

The spelling of 117216351 in words is "one hundred seventeen million, two hundred sixteen thousand, three hundred fifty-one".