113418 has 12 divisors (see below), whose sum is σ = 245778. Its totient is φ = 37800.

The previous prime is 113417. The next prime is 113437. The reversal of 113418 is 814311.

It can be written as a sum of positive squares in only one way, i.e., 91809 + 21609 = 303^2 + 147^2 .

It is a Smith number, since the sum of its digits (18) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6301 = 113418 / (1 + 1 + 3 + 4 + 1 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 113418.

It is not an unprimeable number, because it can be changed into a prime (113417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3133 + ... + 3168.

2¹¹³⁴¹⁸ is an apocalyptic number.

113418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

113418 is an abundant number, since it is smaller than the sum of its proper divisors (132360).

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

113418 is a wasteful number, since it uses less digits than its factorization.

113418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309 (or 6306 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 113418 is about 336.7758898734. The cubic root of 113418 is about 48.4054202431.

Adding to 113418 its reverse (814311), we get a palindrome (927729).

The spelling of 113418 in words is "one hundred thirteen thousand, four hundred eighteen".