118540647 has 6 divisors (see below), whose sum is σ = 171225392. Its totient is φ = 79027092.

The previous prime is 118540619. The next prime is 118540649. The reversal of 118540647 is 746045811.

It is a happy number.

118540647 is a `hidden beast` number, since 1 + 1 + 8 + 5 + 4 + 0 + 647 = 666.

It is not a de Polignac number, because 118540647 - 2⁸ = 118540391 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 (118540649) 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 5 ways as a sum of consecutive naturals, for example, 6585583 + ... + 6585600.

Almost surely, 2^118540647 is an apocalyptic number.

118540647 is a deficient number, since it is larger than the sum of its proper divisors (52684745).

118540647 is a wasteful number, since it uses less digits than its factorization.

118540647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13171189 (or 13171186 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 118540647 is about 10887.6373470097. The cubic root of 118540647 is about 491.2347686749.

The spelling of 118540647 in words is "one hundred eighteen million, five hundred forty thousand, six hundred forty-seven".