118200397 has 12 divisors (see below), whose sum is σ = 137678940. Its totient is φ = 101181696.

The previous prime is 118200361. The next prime is 118200403. The reversal of 118200397 is 793002811.

It can be written as a sum of positive squares in 2 ways, for example, as 67420521 + 50779876 = 8211^2 + 7126^2 .

It is a de Polignac number, because none of the positive numbers 2^k-118200397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118200697) 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 11 ways as a sum of consecutive naturals, for example, 61629 + ... + 63517.

It is an arithmetic number, because the mean of its divisors is an integer number (11473245).

Almost surely, 2^118200397 is an apocalyptic number.

It is an amenable number.

118200397 is a deficient number, since it is larger than the sum of its proper divisors (19478543).

118200397 is a wasteful number, since it uses less digits than its factorization.

118200397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180 (or 3173 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 118200397 is about 10872.0005978661. Note that the first 3 decimals coincide. The cubic root of 118200397 is about 490.7643173780.

The spelling of 118200397 in words is "one hundred eighteen million, two hundred thousand, three hundred ninety-seven".