108818641 has 4 divisors (see below), whose sum is σ = 108887152. Its totient is φ = 108750132.

The previous prime is 108818639. The next prime is 108818651. The reversal of 108818641 is 146818801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108818641 - 2¹ = 108818639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108818641.

It is not an unprimeable number, because it can be changed into a prime (108818651) 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, 31815 + ... + 35068.

It is an arithmetic number, because the mean of its divisors is an integer number (27221788).

Almost surely, 2^108818641 is an apocalyptic number.

It is an amenable number.

108818641 is a deficient number, since it is larger than the sum of its proper divisors (68511).

108818641 is an equidigital number, since it uses as much as digits as its factorization.

108818641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68510.

The product of its (nonzero) digits is 12288, while the sum is 37.

The square root of 108818641 is about 10431.6173722007. The cubic root of 108818641 is about 477.4205395770.

The spelling of 108818641 in words is "one hundred eight million, eight hundred eighteen thousand, six hundred forty-one".