2520115 has 16 divisors (see below), whose sum is σ = 3292128. Its totient is φ = 1840896.

The previous prime is 2520079. The next prime is 2520121. The reversal of 2520115 is 5110252.

2520115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2520115 - 2⁹ = 2519603 is a prime.

It is a super-2 number, since 2×2520115² = 12701959226450, which contains 22 as substring.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 8764 + ... + 9046.

It is an arithmetic number, because the mean of its divisors is an integer number (205758).

2^2520115 is an apocalyptic number.

2520115 is a deficient number, since it is larger than the sum of its proper divisors (772013).

2520115 is a wasteful number, since it uses less digits than its factorization.

2520115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2520115 is about 1587.4870078209. The cubic root of 2520115 is about 136.0839123156.

Adding to 2520115 its reverse (5110252), we get a palindrome (7630367).

It can be divided in two parts, 25201 and 15, that multiplied together give a triangular number (378015 = T₈₆₉).

The spelling of 2520115 in words is "two million, five hundred twenty thousand, one hundred fifteen".