108602405 has 4 divisors (see below), whose sum is σ = 130322892. Its totient is φ = 86881920.

The previous prime is 108602401. The next prime is 108602407. The reversal of 108602405 is 504206801.

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 25391521 + 83210884 = 5039^2 + 9122^2 .

It is not a de Polignac number, because 108602405 - 2² = 108602401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108602401) 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, 10860236 + ... + 10860245.

It is an arithmetic number, because the mean of its divisors is an integer number (32580723).

Almost surely, 2^108602405 is an apocalyptic number.

It is an amenable number.

108602405 is a deficient number, since it is larger than the sum of its proper divisors (21720487).

108602405 is an equidigital number, since it uses as much as digits as its factorization.

108602405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21720486.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 108602405 is about 10421.2477659827. The cubic root of 108602405 is about 477.1040988061.

The spelling of 108602405 in words is "one hundred eight million, six hundred two thousand, four hundred five".