118508153 has 4 divisors (see below), whose sum is σ = 119263140. Its totient is φ = 117753168.

The previous prime is 118508141. The next prime is 118508161. The reversal of 118508153 is 351805811.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65334889 + 53173264 = 8083^2 + 7292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118508153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118508183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377258 + ... + 377571.

It is an arithmetic number, because the mean of its divisors is an integer number (29815785).

Almost surely, 2^118508153 is an apocalyptic number.

It is an amenable number.

118508153 is a deficient number, since it is larger than the sum of its proper divisors (754987).

118508153 is an equidigital number, since it uses as much as digits as its factorization.

118508153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754986.

The product of its (nonzero) digits is 4800, while the sum is 32.

The square root of 118508153 is about 10886.1450017901. The cubic root of 118508153 is about 491.1898793150.

The spelling of 118508153 in words is "one hundred eighteen million, five hundred eight thousand, one hundred fifty-three".