118440513 has 48 divisors (see below), whose sum is σ = 188697600. Its totient is φ = 71285760.

The previous prime is 118440503. The next prime is 118440521. The reversal of 118440513 is 315044811.

It is a happy number.

It is not a de Polignac number, because 118440513 - 2⁵ = 118440481 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (118440503) 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 47 ways as a sum of consecutive naturals, for example, 495448 + ... + 495686.

It is an arithmetic number, because the mean of its divisors is an integer number (3931200).

Almost surely, 2^118440513 is an apocalyptic number.

It is an amenable number.

118440513 is a deficient number, since it is larger than the sum of its proper divisors (70257087).

118440513 is a wasteful number, since it uses less digits than its factorization.

118440513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 118440513 is about 10883.0378571426. The cubic root of 118440513 is about 491.0964106221.

The spelling of 118440513 in words is "one hundred eighteen million, four hundred forty thousand, five hundred thirteen".