10120015 has 16 divisors (see below), whose sum is σ = 13057632. Its totient is φ = 7501824.

The previous prime is 10119983. The next prime is 10120021. The reversal of 10120015 is 51002101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10120015 - 2⁵ = 10119983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10119983 and 10120010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4807 + ... + 6583.

It is an arithmetic number, because the mean of its divisors is an integer number (816102).

Almost surely, 2^10120015 is an apocalyptic number.

10120015 is a deficient number, since it is larger than the sum of its proper divisors (2937617).

10120015 is a wasteful number, since it uses less digits than its factorization.

10120015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 10120015 is about 3181.1971017213. The cubic root of 10120015 is about 216.3019254505.

Adding to 10120015 its reverse (51002101), we get a palindrome (61122116).

The spelling of 10120015 in words is "ten million, one hundred twenty thousand, fifteen".