118282393 has 4 divisors (see below), whose sum is σ = 118799140. Its totient is φ = 117765648.

The previous prime is 118282369. The next prime is 118282427. The reversal of 118282393 is 393282811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393282811 = 17 ⋅23134283.

It can be written as a sum of positive squares in 2 ways, for example, as 49674304 + 68608089 = 7048^2 + 8283^2 .

It is a cyclic number.

It is not a de Polignac number, because 118282393 - 2⁵ = 118282361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118282343) 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, 258030 + ... + 258487.

It is an arithmetic number, because the mean of its divisors is an integer number (29699785).

Almost surely, 2^118282393 is an apocalyptic number.

It is an amenable number.

118282393 is a deficient number, since it is larger than the sum of its proper divisors (516747).

118282393 is an equidigital number, since it uses as much as digits as its factorization.

118282393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516746.

The product of its digits is 20736, while the sum is 37.

The square root of 118282393 is about 10875.7709152041. The cubic root of 118282393 is about 490.8777727485.

The spelling of 118282393 in words is "one hundred eighteen million, two hundred eighty-two thousand, three hundred ninety-three".