118861858 has 16 divisors (see below), whose sum is σ = 188987904. Its totient is φ = 55873600.

The previous prime is 118861849. The next prime is 118861859. The reversal of 118861858 is 858168811.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (118861859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49383 + ... + 51733.

It is an arithmetic number, because the mean of its divisors is an integer number (11811744).

Almost surely, 2^118861858 is an apocalyptic number.

118861858 is a deficient number, since it is larger than the sum of its proper divisors (70126046).

118861858 is a wasteful number, since it uses less digits than its factorization.

118861858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3857.

The product of its digits is 122880, while the sum is 46.

The square root of 118861858 is about 10902.3785478216. The cubic root of 118861858 is about 491.6780700729.

The spelling of 118861858 in words is "one hundred eighteen million, eight hundred sixty-one thousand, eight hundred fifty-eight".