118830917 has 4 divisors (see below), whose sum is σ = 120056076. Its totient is φ = 117605760.

The previous prime is 118830847. The next prime is 118830919. The reversal of 118830917 is 719038811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 719038811 = 23 ⋅31262557.

It can be written as a sum of positive squares in 2 ways, for example, as 27552001 + 91278916 = 5249^2 + 9554^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118830917 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 (118830919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612434 + ... + 612627.

It is an arithmetic number, because the mean of its divisors is an integer number (30014019).

Almost surely, 2^118830917 is an apocalyptic number.

It is an amenable number.

118830917 is a deficient number, since it is larger than the sum of its proper divisors (1225159).

118830917 is an equidigital number, since it uses as much as digits as its factorization.

118830917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225158.

The product of its (nonzero) digits is 12096, while the sum is 38.

The square root of 118830917 is about 10900.9594531858. The cubic root of 118830917 is about 491.6354033682.

The spelling of 118830917 in words is "one hundred eighteen million, eight hundred thirty thousand, nine hundred seventeen".