118945811 has 4 divisors (see below), whose sum is σ = 124117392. Its totient is φ = 113774232.

The previous prime is 118945807. The next prime is 118945847. The reversal of 118945811 is 118549811.

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

It is a cyclic number.

It is not a de Polignac number, because 118945811 - 2² = 118945807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118945891) 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, 2585756 + ... + 2585801.

It is an arithmetic number, because the mean of its divisors is an integer number (31029348).

Almost surely, 2^118945811 is an apocalyptic number.

118945811 is a deficient number, since it is larger than the sum of its proper divisors (5171581).

118945811 is an equidigital number, since it uses as much as digits as its factorization.

118945811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171580.

The product of its digits is 11520, while the sum is 38.

The square root of 118945811 is about 10906.2280830725. The cubic root of 118945811 is about 491.7938014360.

The spelling of 118945811 in words is "one hundred eighteen million, nine hundred forty-five thousand, eight hundred eleven".