118215956 has 12 divisors (see below), whose sum is σ = 211924020. Its totient is φ = 57666240.

The previous prime is 118215953. The next prime is 118215959. The reversal of 118215956 is 659512811.

It is an interprime number because it is at equal distance from previous prime (118215953) and next prime (118215959).

It can be written as a sum of positive squares in 2 ways, for example, as 30980356 + 87235600 = 5566^2 + 9340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118215953) 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, 360251 + ... + 360578.

It is an arithmetic number, because the mean of its divisors is an integer number (17660335).

Almost surely, 2^118215956 is an apocalyptic number.

It is an amenable number.

118215956 is a deficient number, since it is larger than the sum of its proper divisors (93708064).

118215956 is a wasteful number, since it uses less digits than its factorization.

118215956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720874 (or 720872 counting only the distinct ones).

The product of its digits is 21600, while the sum is 38.

The square root of 118215956 is about 10872.7161279967. The cubic root of 118215956 is about 490.7858499255.

The spelling of 118215956 in words is "one hundred eighteen million, two hundred fifteen thousand, nine hundred fifty-six".