108968137 has 4 divisors (see below), whose sum is σ = 111286656. Its totient is φ = 106649620.

The previous prime is 108968107. The next prime is 108968161. The reversal of 108968137 is 731869801.

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 a de Polignac number, because none of the positive numbers 2^k-108968137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108968093 and 108968102.

It is not an unprimeable number, because it can be changed into a prime (108968107) 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, 1159189 + ... + 1159282.

It is an arithmetic number, because the mean of its divisors is an integer number (27821664).

Almost surely, 2^108968137 is an apocalyptic number.

It is an amenable number.

108968137 is a deficient number, since it is larger than the sum of its proper divisors (2318519).

108968137 is an equidigital number, since it uses as much as digits as its factorization.

108968137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318518.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 108968137 is about 10438.7804364303. The cubic root of 108968137 is about 477.6390677054.

The spelling of 108968137 in words is "one hundred eight million, nine hundred sixty-eight thousand, one hundred thirty-seven".