118815842 has 16 divisors (see below), whose sum is σ = 186710400. Its totient is φ = 56631120.

The previous prime is 118815841. The next prime is 118815847. The reversal of 118815842 is 248518811.

It is a junction number, because it is equal to n+sod(n) for n = 118815796 and 118815805.

It is not an unprimeable number, because it can be changed into a prime (118815841) 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, 8384 + ... + 17547.

It is an arithmetic number, because the mean of its divisors is an integer number (11669400).

Almost surely, 2^118815842 is an apocalyptic number.

118815842 is a deficient number, since it is larger than the sum of its proper divisors (67894558).

118815842 is a wasteful number, since it uses less digits than its factorization.

118815842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26041.

The product of its digits is 20480, while the sum is 38.

The square root of 118815842 is about 10900.2679783572. The cubic root of 118815842 is about 491.6146127150.

The spelling of 118815842 in words is "one hundred eighteen million, eight hundred fifteen thousand, eight hundred forty-two".