108857305 has 4 divisors (see below), whose sum is σ = 130628772. Its totient is φ = 87085840.

The previous prime is 108857303. The next prime is 108857351. The reversal of 108857305 is 503758801.

108857305 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32626944 + 76230361 = 5712^2 + 8731^2 .

It is not a de Polignac number, because 108857305 - 2¹ = 108857303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108857303) 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, 10885726 + ... + 10885735.

It is an arithmetic number, because the mean of its divisors is an integer number (32657193).

Almost surely, 2^108857305 is an apocalyptic number.

It is an amenable number.

108857305 is a deficient number, since it is larger than the sum of its proper divisors (21771467).

108857305 is an equidigital number, since it uses as much as digits as its factorization.

108857305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21771466.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 108857305 is about 10433.4704197597. The cubic root of 108857305 is about 477.4770764650.

The spelling of 108857305 in words is "one hundred eight million, eight hundred fifty-seven thousand, three hundred five".