118640735 has 4 divisors (see below), whose sum is σ = 142368888. Its totient is φ = 94912584.

The previous prime is 118640713. The next prime is 118640749. The reversal of 118640735 is 537046811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118640735 - 2¹⁶ = 118575199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118640695 and 118640704.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11864069 + ... + 11864078.

It is an arithmetic number, because the mean of its divisors is an integer number (35592222).

Almost surely, 2^118640735 is an apocalyptic number.

118640735 is a deficient number, since it is larger than the sum of its proper divisors (23728153).

118640735 is an equidigital number, since it uses as much as digits as its factorization.

118640735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23728152.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 118640735 is about 10892.2327830432. The cubic root of 118640735 is about 491.3729853275.

The spelling of 118640735 in words is "one hundred eighteen million, six hundred forty thousand, seven hundred thirty-five".