118283845 has 4 divisors (see below), whose sum is σ = 141940620. Its totient is φ = 94627072.

The previous prime is 118283839. The next prime is 118283897. The reversal of 118283845 is 548382811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 548382811 = 107 ⋅5125073.

It can be written as a sum of positive squares in 2 ways, for example, as 69856164 + 48427681 = 8358^2 + 6959^2 .

It is a cyclic number.

It is not a de Polignac number, because 118283845 - 2⁵ = 118283813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118283798 and 118283807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11828380 + ... + 11828389.

It is an arithmetic number, because the mean of its divisors is an integer number (35485155).

Almost surely, 2^118283845 is an apocalyptic number.

It is an amenable number.

118283845 is a deficient number, since it is larger than the sum of its proper divisors (23656775).

118283845 is an equidigital number, since it uses as much as digits as its factorization.

118283845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23656774.

The product of its digits is 61440, while the sum is 40.

The square root of 118283845 is about 10875.8376688879. The cubic root of 118283845 is about 490.8797813642.

The spelling of 118283845 in words is "one hundred eighteen million, two hundred eighty-three thousand, eight hundred forty-five".