2521135 has 8 divisors (see below), whose sum is σ = 3034800. Its totient is φ = 2010624.

The previous prime is 2521111. The next prime is 2521147. The reversal of 2521135 is 5311252.

2521135 is a nontrivial binomial coefficient, being equal to C(2246, 2).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 9-Lehmer number, since φ(2521135) divides (2521135-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 2521135 - 2¹¹ = 2519087 is a prime.

It is a super-2 number, since 2×2521135² = 12712243376450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684 + ... + 2806.

It is an arithmetic number, because the mean of its divisors is an integer number (379350).

2^2521135 is an apocalyptic number.

2521135 is the 2245-th triangular number and also the 1123-rd hexagonal number.

2521135 is the 749-th centered nonagonal number.

2521135 is a deficient number, since it is larger than the sum of its proper divisors (513665).

2521135 is a wasteful number, since it uses less digits than its factorization.

2521135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577.

The product of its digits is 300, while the sum is 19.

The square root of 2521135 is about 1587.8082377920. The cubic root of 2521135 is about 136.1022695292.

Adding to 2521135 its reverse (5311252), we get a palindrome (7832387).

The spelling of 2521135 in words is "two million, five hundred twenty-one thousand, one hundred thirty-five".