118380881 has 8 divisors (see below), whose sum is σ = 119170944. Its totient is φ = 117594000.

The previous prime is 118380803. The next prime is 118380883. The reversal of 118380881 is 188083811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118380881 is a prime.

It is a super-2 number, since 2×118380881² = 28028065972672322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118380883) 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 7 ways as a sum of consecutive naturals, for example, 157256 + ... + 158006.

It is an arithmetic number, because the mean of its divisors is an integer number (14896368).

Almost surely, 2^118380881 is an apocalyptic number.

It is an amenable number.

118380881 is a deficient number, since it is larger than the sum of its proper divisors (790063).

118380881 is an equidigital number, since it uses as much as digits as its factorization.

118380881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591.

The product of its (nonzero) digits is 12288, while the sum is 38.

The square root of 118380881 is about 10880.2978359970. The cubic root of 118380881 is about 491.0139783063.

The spelling of 118380881 in words is "one hundred eighteen million, three hundred eighty thousand, eight hundred eighty-one".