118006881 has 4 divisors (see below), whose sum is σ = 157342512. Its totient is φ = 78671252.

The previous prime is 118006871. The next prime is 118006901. The reversal of 118006881 is 188600811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 118006881 - 2⁶ = 118006817 is a prime.

It is a super-2 number, since 2×118006881² = 27851247926696322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118006871) 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, 19667811 + ... + 19667816.

It is an arithmetic number, because the mean of its divisors is an integer number (39335628).

Almost surely, 2^118006881 is an apocalyptic number.

It is an amenable number.

118006881 is a deficient number, since it is larger than the sum of its proper divisors (39335631).

118006881 is an equidigital number, since it uses as much as digits as its factorization.

118006881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39335630.

The product of its (nonzero) digits is 3072, while the sum is 33.

The square root of 118006881 is about 10863.0972102803. The cubic root of 118006881 is about 490.4963469777.

It can be divided in two parts, 11800 and 6881, that added together give a palindrome (18681).

The spelling of 118006881 in words is "one hundred eighteen million, six thousand, eight hundred eighty-one".