105418 has 4 divisors (see below), whose sum is σ = 158130. Its totient is φ = 52708.

The previous prime is 105407. The next prime is 105437. The reversal of 105418 is 814501.

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

It can be written as a sum of positive squares in only one way, i.e., 104329 + 1089 = 323^2 + 33^2 .

It is a super-2 number, since 2×105418² = 22225909448, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 105395 and 105404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26353 + ... + 26356.

2¹⁰⁵⁴¹⁸ is an apocalyptic number.

105418 is a deficient number, since it is larger than the sum of its proper divisors (52712).

105418 is an equidigital number, since it uses as much as digits as its factorization.

105418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52711.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 105418 is about 324.6813822812. The cubic root of 105418 is about 47.2394599634.

Adding to 105418 its reverse (814501), we get a palindrome (919919).

The spelling of 105418 in words is "one hundred five thousand, four hundred eighteen".