2115015 has 16 divisors (see below), whose sum is σ = 3867648. Its totient is φ = 966816.

The previous prime is 2115013. The next prime is 2115017. The reversal of 2115015 is 5105112.

2115015 = T₃₃₀ + T₃₃₁ + ... + T₃₆₄.

It is an interprime number because it is at equal distance from previous prime (2115013) and next prime (2115017).

It is not a de Polignac number, because 2115015 - 2¹ = 2115013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 2114985 and 2115003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9967 + ... + 10176.

It is an arithmetic number, because the mean of its divisors is an integer number (241728).

2^2115015 is an apocalyptic number.

2115015 is a deficient number, since it is larger than the sum of its proper divisors (1752633).

2115015 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 2115015 = (1215051)₁₁.

2115015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20158.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 2115015 is about 1454.3091143220. The cubic root of 2115015 is about 128.3623966709.

The spelling of 2115015 in words is "two million, one hundred fifteen thousand, fifteen".