10115605 has 4 divisors (see below), whose sum is σ = 12138732. Its totient is φ = 8092480.

The previous prime is 10115597. The next prime is 10115639. The reversal of 10115605 is 50651101.

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 5692996 + 4422609 = 2386^2 + 2103^2 .

It is not a de Polignac number, because 10115605 - 2³ = 10115597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011556 + ... + 1011565.

It is an arithmetic number, because the mean of its divisors is an integer number (3034683).

Almost surely, 2^10115605 is an apocalyptic number.

It is an amenable number.

10115605 is a deficient number, since it is larger than the sum of its proper divisors (2023127).

10115605 is an equidigital number, since it uses as much as digits as its factorization.

10115605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023126.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 10115605 is about 3180.5038908953. The cubic root of 10115605 is about 216.2705015813.

Adding to 10115605 its reverse (50651101), we get a palindrome (60766706).

The spelling of 10115605 in words is "ten million, one hundred fifteen thousand, six hundred five".