108113405 has 4 divisors (see below), whose sum is σ = 129736092. Its totient is φ = 86490720.

The previous prime is 108113339. The next prime is 108113407. The reversal of 108113405 is 504311801.

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 82337476 + 25775929 = 9074^2 + 5077^2 .

It is not a de Polignac number, because 108113405 - 2¹⁴ = 108097021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108113407) 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, 10811336 + ... + 10811345.

It is an arithmetic number, because the mean of its divisors is an integer number (32434023).

Almost surely, 2^108113405 is an apocalyptic number.

It is an amenable number.

108113405 is a deficient number, since it is larger than the sum of its proper divisors (21622687).

108113405 is an equidigital number, since it uses as much as digits as its factorization.

108113405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21622686.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 108113405 is about 10397.7596144554. The cubic root of 108113405 is about 476.3869417419.

The spelling of 108113405 in words is "one hundred eight million, one hundred thirteen thousand, four hundred five".