118319717 has 6 divisors (see below), whose sum is σ = 119147718. Its totient is φ = 117493544.

The previous prime is 118319693. The next prime is 118319723. The reversal of 118319717 is 717913811.

It can be written as a sum of positive squares in only one way, i.e., 115584001 + 2735716 = 10751^2 + 1654^2 .

It is not a de Polignac number, because 118319717 - 2¹⁴ = 118303333 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 (118319917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142658 + ... + 143484.

It is an arithmetic number, because the mean of its divisors is an integer number (19857953).

Almost surely, 2^118319717 is an apocalyptic number.

It is an amenable number.

118319717 is a deficient number, since it is larger than the sum of its proper divisors (828001).

118319717 is an frugal number, since it uses more digits than its factorization.

118319717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827 (or 1000 counting only the distinct ones).

The product of its digits is 10584, while the sum is 38.

The square root of 118319717 is about 10877.4867041978. The cubic root of 118319717 is about 490.9293994664.

The spelling of 118319717 in words is "one hundred eighteen million, three hundred nineteen thousand, seven hundred seventeen".