10115405 has 4 divisors (see below), whose sum is σ = 12138492. Its totient is φ = 8092320.

The previous prime is 10115381. The next prime is 10115407. The reversal of 10115405 is 50451101.

10115405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2292196 + 7823209 = 1514^2 + 2797^2 .

It is not a de Polignac number, because 10115405 - 2¹⁴ = 10099021 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 (10115407) 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, 1011536 + ... + 1011545.

It is an arithmetic number, because the mean of its divisors is an integer number (3034623).

Almost surely, 2^10115405 is an apocalyptic number.

It is an amenable number.

10115405 is a deficient number, since it is larger than the sum of its proper divisors (2023087).

10115405 is an equidigital number, since it uses as much as digits as its factorization.

10115405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023086.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 10115405 is about 3180.4724491811. The cubic root of 10115405 is about 216.2690762460.

Adding to 10115405 its reverse (50451101), we get a palindrome (60566506).

The spelling of 10115405 in words is "ten million, one hundred fifteen thousand, four hundred five".