118857811 has 8 divisors (see below), whose sum is σ = 122094000. Its totient is φ = 115637760.

The previous prime is 118857691. The next prime is 118857821. The reversal of 118857811 is 118758811.

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

It is a cyclic number.

It is not a de Polignac number, because 118857811 - 2²¹ = 116760659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118857821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11715 + ... + 19363.

It is an arithmetic number, because the mean of its divisors is an integer number (15261750).

Almost surely, 2^118857811 is an apocalyptic number.

118857811 is a deficient number, since it is larger than the sum of its proper divisors (3236189).

118857811 is an equidigital number, since it uses as much as digits as its factorization.

118857811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8069.

The product of its digits is 17920, while the sum is 40.

The square root of 118857811 is about 10902.1929445410. The cubic root of 118857811 is about 491.6724898030.

The spelling of 118857811 in words is "one hundred eighteen million, eight hundred fifty-seven thousand, eight hundred eleven".