118380805 has 4 divisors (see below), whose sum is σ = 142056972. Its totient is φ = 94704640.

The previous prime is 118380803. The next prime is 118380883. The reversal of 118380805 is 508083811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22791076 + 95589729 = 4774^2 + 9777^2 .

It is not a de Polignac number, because 118380805 - 2¹ = 118380803 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 (118380803) 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, 11838076 + ... + 11838085.

It is an arithmetic number, because the mean of its divisors is an integer number (35514243).

Almost surely, 2^118380805 is an apocalyptic number.

It is an amenable number.

118380805 is a deficient number, since it is larger than the sum of its proper divisors (23676167).

118380805 is an equidigital number, since it uses as much as digits as its factorization.

118380805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23676166.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 118380805 is about 10880.2943434449. The cubic root of 118380805 is about 491.0138732300.

The spelling of 118380805 in words is "one hundred eighteen million, three hundred eighty thousand, eight hundred five".