108218937 has 4 divisors (see below), whose sum is σ = 144291920. Its totient is φ = 72145956.

The previous prime is 108218911. The next prime is 108218953. The reversal of 108218937 is 739812801.

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 not a de Polignac number, because 108218937 - 2⁸ = 108218681 is a prime.

It is a super-2 number, since 2×108218937² = 23422676650819938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108218895 and 108218904.

It is not an unprimeable number, because it can be changed into a prime (108218987) 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, 18036487 + ... + 18036492.

It is an arithmetic number, because the mean of its divisors is an integer number (36072980).

Almost surely, 2^108218937 is an apocalyptic number.

It is an amenable number.

108218937 is a deficient number, since it is larger than the sum of its proper divisors (36072983).

108218937 is an equidigital number, since it uses as much as digits as its factorization.

108218937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36072982.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 108218937 is about 10402.8331237216. The cubic root of 108218937 is about 476.5418954460.

The spelling of 108218937 in words is "one hundred eight million, two hundred eighteen thousand, nine hundred thirty-seven".