2520135 has 12 divisors (see below), whose sum is σ = 4368312. Its totient is φ = 1344048.

The previous prime is 2520127. The next prime is 2520139. The reversal of 2520135 is 5310252.

It is a happy number.

2520135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2520135 - 2³ = 2520127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520139) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 27957 + ... + 28046.

It is an arithmetic number, because the mean of its divisors is an integer number (364026).

2^2520135 is an apocalyptic number.

2520135 is a deficient number, since it is larger than the sum of its proper divisors (1848177).

2520135 is a wasteful number, since it uses less digits than its factorization.

2520135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56014 (or 56011 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2520135 is about 1587.4933070725. The cubic root of 2520135 is about 136.0842723086.

Adding to 2520135 its reverse (5310252), we get a palindrome (7830387).

The spelling of 2520135 in words is "two million, five hundred twenty thousand, one hundred thirty-five".