2564135 has 16 divisors (see below), whose sum is σ = 3577152. Its totient is φ = 1728000.

The previous prime is 2564123. The next prime is 2564143. The reversal of 2564135 is 5314652.

It is not a de Polignac number, because 2564135 - 2⁶ = 2564071 is a prime.

It is a Duffinian number.

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, 1535 + ... + 2735.

It is an arithmetic number, because the mean of its divisors is an integer number (223572).

2^2564135 is an apocalyptic number.

2564135 is a deficient number, since it is larger than the sum of its proper divisors (1013017).

2564135 is a wasteful number, since it uses less digits than its factorization.

2564135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274.

The product of its digits is 3600, while the sum is 26.

The square root of 2564135 is about 1601.2916661246. The cubic root of 2564135 is about 136.8716897652.

Adding to 2564135 its reverse (5314652), we get a palindrome (7878787).

The spelling of 2564135 in words is "two million, five hundred sixty-four thousand, one hundred thirty-five".