811242118 has 8 divisors (see below), whose sum is σ = 1222177680. Its totient is φ = 403849560.

The previous prime is 811242109. The next prime is 811242119.

811242118 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×811242118² = 1316227548034251848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811242119) 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, 885178 + ... + 886093.

It is an arithmetic number, because the mean of its divisors is an integer number (152772210).

Almost surely, 2^811242118 is an apocalyptic number.

811242118 is a deficient number, since it is larger than the sum of its proper divisors (410935562).

811242118 is a wasteful number, since it uses less digits than its factorization.

811242118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771502.

The product of its digits is 1024, while the sum is 28.

The square root of 811242118 is about 28482.3123710137. The cubic root of 811242118 is about 932.6459960156.

The spelling of 811242118 in words is "eight hundred eleven million, two hundred forty-two thousand, one hundred eighteen".