108249605 has 16 divisors (see below), whose sum is σ = 138017520. Its totient is φ = 81349632.

The previous prime is 108249599. The next prime is 108249607. The reversal of 108249605 is 506942801.

It can be written as a sum of positive squares in 8 ways, for example, as 7628644 + 100620961 = 2762^2 + 10031^2 .

It is a cyclic number.

It is not a de Polignac number, because 108249605 - 2¹⁴ = 108233221 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108249607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4724 + ... + 15453.

It is an arithmetic number, because the mean of its divisors is an integer number (8626095).

Almost surely, 2^108249605 is an apocalyptic number.

It is an amenable number.

108249605 is a deficient number, since it is larger than the sum of its proper divisors (29767915).

108249605 is a wasteful number, since it uses less digits than its factorization.

108249605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20248.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 108249605 is about 10404.3070408365. The cubic root of 108249605 is about 476.5869066887.

The spelling of 108249605 in words is "one hundred eight million, two hundred forty-nine thousand, six hundred five".