108742091 has 8 divisors (see below), whose sum is σ = 114130080. Its totient is φ = 103409152.

The previous prime is 108742087. The next prime is 108742093. The reversal of 108742091 is 190247801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108742091 - 2² = 108742087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108742093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9686 + ... + 17643.

It is an arithmetic number, because the mean of its divisors is an integer number (14266260).

Almost surely, 2^108742091 is an apocalyptic number.

108742091 is a deficient number, since it is larger than the sum of its proper divisors (5387989).

108742091 is a wasteful number, since it uses less digits than its factorization.

108742091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27525.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 108742091 is about 10427.9475928871. The cubic root of 108742091 is about 477.3085639233.

Adding to 108742091 its reverse (190247801), we get a palindrome (298989892).

The spelling of 108742091 in words is "one hundred eight million, seven hundred forty-two thousand, ninety-one".