115749618 has 8 divisors (see below), whose sum is σ = 231499248. Its totient is φ = 38583204.

The previous prime is 115749611. The next prime is 115749631. The reversal of 115749618 is 816947511.

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

115749618 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 115749618.

It is not an unprimeable number, because it can be changed into a prime (115749611) 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, 9645796 + ... + 9645807.

It is an arithmetic number, because the mean of its divisors is an integer number (28937406).

Almost surely, 2^115749618 is an apocalyptic number.

115749618 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.

115749618 is a wasteful number, since it uses less digits than its factorization.

115749618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19291608.

The product of its digits is 60480, while the sum is 42.

The square root of 115749618 is about 10758.6996426148. The cubic root of 115749618 is about 487.3487488701.

The spelling of 115749618 in words is "one hundred fifteen million, seven hundred forty-nine thousand, six hundred eighteen".