115420218 has 8 divisors (see below), whose sum is σ = 230840448. Its totient is φ = 38473404.

The previous prime is 115420183. The next prime is 115420219. The reversal of 115420218 is 812024511.

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

115420218 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (115420219) 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, 9618346 + ... + 9618357.

It is an arithmetic number, because the mean of its divisors is an integer number (28855056).

Almost surely, 2^115420218 is an apocalyptic number.

115420218 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.

115420218 is a wasteful number, since it uses less digits than its factorization.

115420218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19236708.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 115420218 is about 10743.3801943336. The cubic root of 115420218 is about 486.8860109851.

Adding to 115420218 its reverse (812024511), we get a palindrome (927444729).

The spelling of 115420218 in words is "one hundred fifteen million, four hundred twenty thousand, two hundred eighteen".