115540158 has 8 divisors (see below), whose sum is σ = 231080328. Its totient is φ = 38513384.

The previous prime is 115540157. The next prime is 115540163. The reversal of 115540158 is 851045511.

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

115540158 is an admirable number.

It is a super-2 number, since 2×115540158² = 26699056221329928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115540157) by changing a digit.

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, 9628341 + ... + 9628352.

It is an arithmetic number, because the mean of its divisors is an integer number (28885041).

Almost surely, 2^115540158 is an apocalyptic number.

115540158 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

115540158 is a wasteful number, since it uses less digits than its factorization.

115540158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19256698.

The product of its (nonzero) digits is 4000, while the sum is 30.

The square root of 115540158 is about 10748.9607869784. The cubic root of 115540158 is about 487.0546033192.

Adding to 115540158 its reverse (851045511), we get a palindrome (966585669).

The spelling of 115540158 in words is "one hundred fifteen million, five hundred forty thousand, one hundred fifty-eight".