10000015 has 4 divisors (see below), whose sum is σ = 12000024. Its totient is φ = 8000008.

The previous prime is 9999991. The next prime is 10000019. The reversal of 10000015 is 51000001.

10000015 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51000001 = 13 ⋅3923077.

It is a cyclic number.

It is not a de Polignac number, because 10000015 - 2²¹ = 7902863 is a prime.

It is a Duffinian number.

10000015 is a modest number, since divided by 15 gives 10 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 9999962 and 10000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000019) 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, 999997 + ... + 1000006.

It is an arithmetic number, because the mean of its divisors is an integer number (3000006).

Almost surely, 2^10000015 is an apocalyptic number.

10000015 is a deficient number, since it is larger than the sum of its proper divisors (2000009).

10000015 is an equidigital number, since it uses as much as digits as its factorization.

10000015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000008.

The product of its (nonzero) digits is 5, while the sum is 7.

The square root of 10000015 is about 3162.2800318757. The cubic root of 10000015 is about 215.4435767249.

Adding to 10000015 its reverse (51000001), we get a palindrome (61000016).

It can be divided in two parts, 1000001 and 5, that multiplied together give a palindrome (5000005).

The spelling of 10000015 in words is "ten million, fifteen", and thus it is an aban number and an uban number.