118115087 has 4 divisors (see below), whose sum is σ = 118223856. Its totient is φ = 118006320.

The previous prime is 118115083. The next prime is 118115113. The reversal of 118115087 is 780511811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780511811 = 19 ⋅41079569.

It is a cyclic number.

It is not a de Polignac number, because 118115087 - 2² = 118115083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118115083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52739 + ... + 54932.

It is an arithmetic number, because the mean of its divisors is an integer number (29555964).

Almost surely, 2^118115087 is an apocalyptic number.

118115087 is a deficient number, since it is larger than the sum of its proper divisors (108769).

118115087 is a wasteful number, since it uses less digits than its factorization.

118115087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108768.

The product of its (nonzero) digits is 2240, while the sum is 32.

The square root of 118115087 is about 10868.0765087480. The cubic root of 118115087 is about 490.6462208193.

Adding to 118115087 its reverse (780511811), we get a palindrome (898626898).

The spelling of 118115087 in words is "one hundred eighteen million, one hundred fifteen thousand, eighty-seven".