108436018 has 4 divisors (see below), whose sum is σ = 162654030. Its totient is φ = 54218008.

The previous prime is 108436001. The next prime is 108436019. The reversal of 108436018 is 810634801.

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., 74528689 + 33907329 = 8633^2 + 5823^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (108436019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27109003 + ... + 27109006.

Almost surely, 2^108436018 is an apocalyptic number.

108436018 is a deficient number, since it is larger than the sum of its proper divisors (54218012).

108436018 is an equidigital number, since it uses as much as digits as its factorization.

108436018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54218011.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 108436018 is about 10413.2616408117. The cubic root of 108436018 is about 476.8603212245.

It can be divided in two parts, 10843 and 6018, that added together give a palindrome (16861).

The spelling of 108436018 in words is "one hundred eight million, four hundred thirty-six thousand, eighteen".