117216757 has 16 divisors (see below), whose sum is σ = 142956160. Its totient is φ = 93871872.

The previous prime is 117216739. The next prime is 117216787. The reversal of 117216757 is 757612711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117216757 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 (117216727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3673 + ... + 15745.

It is an arithmetic number, because the mean of its divisors is an integer number (8934760).

Almost surely, 2^117216757 is an apocalyptic number.

It is an amenable number.

117216757 is a deficient number, since it is larger than the sum of its proper divisors (25739403).

117216757 is a wasteful number, since it uses less digits than its factorization.

117216757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12172.

The product of its digits is 20580, while the sum is 37.

The square root of 117216757 is about 10826.6687859193. The cubic root of 117216757 is about 489.3991761246.

The spelling of 117216757 in words is "one hundred seventeen million, two hundred sixteen thousand, seven hundred fifty-seven".