118947540 has 48 divisors (see below), whose sum is σ = 338708160. Its totient is φ = 31180800.

The previous prime is 118947509. The next prime is 118947541. The reversal of 118947540 is 45749811.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118947541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13261 + ... + 20340.

It is an arithmetic number, because the mean of its divisors is an integer number (7056420).

Almost surely, 2^118947540 is an apocalyptic number.

118947540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118947540 is an abundant number, since it is smaller than the sum of its proper divisors (219760620).

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

118947540 is a wasteful number, since it uses less digits than its factorization.

118947540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33672 (or 33670 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 118947540 is about 10906.3073494194. The cubic root of 118947540 is about 491.7961843345.

The spelling of 118947540 in words is "one hundred eighteen million, nine hundred forty-seven thousand, five hundred forty".