118657812 has 216 divisors, whose sum is σ = 374574816. Its totient is φ = 28957824.

The previous prime is 118657811. The next prime is 118657817. The reversal of 118657812 is 218756811.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118657811) 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 71 ways as a sum of consecutive naturals, for example, 2759463 + ... + 2759505.

Almost surely, 2^118657812 is an apocalyptic number.

118657812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118657812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187287408).

118657812 is an abundant number, since it is smaller than the sum of its proper divisors (255917004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118657812 is a wasteful number, since it uses less digits than its factorization.

118657812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 87 counting only the distinct ones).

The product of its digits is 26880, while the sum is 39.

The square root of 118657812 is about 10893.0166620638. The cubic root of 118657812 is about 491.3965600688.

The spelling of 118657812 in words is "one hundred eighteen million, six hundred fifty-seven thousand, eight hundred twelve".