118189507 has 8 divisors (see below), whose sum is σ = 122134736. Its totient is φ = 114283872.

The previous prime is 118189501. The next prime is 118189517. The reversal of 118189507 is 705981811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118189507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118189507.

It is not an unprimeable number, because it can be changed into a prime (118189501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3768 + ... + 15829.

It is an arithmetic number, because the mean of its divisors is an integer number (15266842).

Almost surely, 2^118189507 is an apocalyptic number.

118189507 is a deficient number, since it is larger than the sum of its proper divisors (3945229).

118189507 is a wasteful number, since it uses less digits than its factorization.

118189507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19797.

The product of its (nonzero) digits is 20160, while the sum is 40.

The square root of 118189507 is about 10871.4997585430. The cubic root of 118189507 is about 490.7492452697.

The spelling of 118189507 in words is "one hundred eighteen million, one hundred eighty-nine thousand, five hundred seven".